EngineeringUnits
EngineeringUnits
DisplayName | Description |
|---|---|
Groups | |
Outfits | |
Rations | |
shot | |
stick, military | |
Fixed rate | |
twenty foot container | |
forty foot container | |
dl/g | deciliter per gram |
g/cm³ | gram per cubic centimeter |
theoretical pound | |
g/cm² | gram per square centimeter |
theoretical ton | |
kg/m² | kilogram per square meter |
rad/s | radian per second |
rad/s² | radian per second squared |
R | roentgen |
V | volt AC |
V | volt DC |
BtuIT/h | British thermal unit (international table) per hour |
cm³/s | cubic centimeter per second |
ft³/h | cubic foot per hour |
ft³/min | cubic foot per minute |
cm/s | centimeter per second |
dB | decibel |
kbyte | kilobyte |
kBq | kilobecquerel |
kCi | kilocurie |
Mg | megagram |
m/min | meter per minute |
mR | milliroentgen |
mV | millivolt |
kPa·m²/g | kilopascal square meter per gram |
kPa/mm | kilopascal per millimeter |
ml/(cm²·s) | milliliter per square centimeter second |
oz/ft² | ounce per square foot |
oz/(ft²/cin) | ounce per square foot per 0,01inch |
MJ | megajoule |
manmonth | |
ml/s | milliliter per second |
ml/min | milliliter per minute |
cSt | centistokes |
µl | microliter |
µm | micrometer (micron) |
mA | milliampere |
Mbyte | megabyte |
mg/h | milligram per hour |
MBq | megabecquerel |
µF | microfarad |
N/m | newton per meter |
oz·in | ounce inch |
oz·ft | ounce foot |
pF | picofarad |
lb/h | pound per hour |
ton (US) /h | ton (US) per hour |
kl/h | kiloliter per hour |
sitas | |
mesh | |
net kilogram | |
ppm | part per million |
barrel (US)/min | barrel (US) per minute |
batch | |
MMSCF/day | |
hydraulic horse power | |
percent weight | |
ppb | part per billion (US) |
pound per square inch, gauge | |
Oe | oersted |
mPa | millipascal |
Gs | gauss |
mil | milli-inch |
kGs | kilogauss |
lb/in² | pound per square inch absolute |
H | henry |
klbf/in² | A unit of pressure that defines the kilopound-force per square inch Use kil per square inch (common code N20) |
ft·lbf | foot pound-force |
lb/ft³ | pound per cubic foot |
P | poise |
St | stokes |
cal15 | 15 °C calorie |
A·m²/(J·s) | ampere square-meter per joule second |
Å | angstrom |
ua | Astronomical unit |
aJ | attojoule |
b | barn |
b/eV | barn per electronvolt |
b/(sr·eV) | barn per steradian electronvolt |
b/sr | barn per steradian |
Bq/kg | becquerel per kilogram |
Bq/m³ | becquerel per cubic meter |
A/cm | ampere per centimeter |
BtuIT/(s·ft²·°R) | British thermal unit (international table) per second square-foot degree Rankine |
BtuIT/(lb·°R) | British thermal unit (international table) per pound degree Rankine |
BtuIT/(s·ft·°R) | British thermal unit (international table) per second foot degree Rankine |
BtuIT/(h·ft²·°R) | British thermal unit (international table) per hour square foot degree Rankine |
cd/m² | candela per square meter |
CV | cheval vapeur |
C·m | coulomb meter |
C·m²/V | coulomb square meter per volt |
C/cm³ | coulomb per cubic centimeter |
C/m³ | coulomb per cubic meter |
A/mm | ampere per millimeter |
C/mm³ | coulomb per cubic millimeter |
C/(kg·s) | coulomb per kilogram second |
C/mol | coulomb per mole |
C/cm² | coulomb per square centimeter |
C/m² | coulomb per square meter |
C/mm² | coulomb per square millimeter |
cm³/mol | cubic centimeter per mole |
dm³/mol | cubic decimeter per mole |
m³/C | cubic meter per coulomb |
m³/kg | cubic meter per kilogram |
A/cm² | ampere per square centimeter |
m³/mol | cubic meter per mole |
A/m² | ampere per square meter |
Ci/kg | curie per kilogram |
dwt | deadweight tonnage |
dal | Deciliters |
dam | dekameter |
dtex (g/10km) | decitex |
°R | degree Rankine |
den (g/9 km) | denier |
A·m² | ampere square meter |
dyn·s/cm³ | dyne second per cubic centimeter |
dyn·s/cm | dyne second per centimeter |
dyn·s/cm5 | dyne second per centimeter to the fifth power |
eV | electronvolt |
eV/m | electronvolt per meter |
eV·m² | electronvolt square meter |
eV·m²/kg | electronvolt square meter per kilogram |
erg | erg |
erg/cm | erg per centimeter |
8-part cloud cover | |
A/(m²·K²) | ampere per square meter kelvin squared |
erg/cm³ | erg per cubic centimeter |
erg/g | erg per gram |
erg/g·s | erg per gram second |
erg/s | erg per second |
erg/(s·cm²) | erg per second square centimeter |
erg/(cm²·s) | erg per square centimeter second |
erg·cm² | erg square centimeter |
erg·cm²/g | erg square centimeter per gram |
EJ | exajoule |
F/m | farad per meter |
A/mm² | ampere per square millimeter |
fJ | femtojoule |
fm | femtometer |
ft/s² | foot per second squared |
ft·lbf/s | foot pound-force per second |
freight ton | |
Gal | Gal |
Gaussian CGS (Centimeter-Gram-Second system) unit of displacement | |
Gaussian CGS (Centimeter-Gram-Second system) unit of electric current | |
Gaussian CGS (Centimeter-Gram-Second system) unit of electric charge | |
A·s | ampere second |
Gaussian CGS (Centimeter-Gram-Second system) unit of electric field strength | |
Gaussian CGS (Centimeter-Gram-Second system) unit of electric polarization | |
Gaussian CGS (Centimeter-Gram-Second system) unit of electric potential | |
Gaussian CGS (Centimeter-Gram-Second system) unit of magnetization | |
GC/m³ | gigacoulomb per cubic meter |
GeV | gigaelectronvolt |
GHz | gigahertz |
GΩ | gigaohm |
GΩ·m | gigaohm meter |
GPa | gigapascal |
rate | |
GW | gigawatt |
grade | |
g/m³ | gram per cubic meter |
g/mol | gram per mole |
Gy | gray |
Gy/s | gray per second |
hPa | hectopascal |
H/m | henry per meter |
bit | bit |
ball | |
pk | bulk pack |
acre | acre |
activity | |
byte | byte |
A/m | ampere per meter |
additional minute | |
average minute per call | |
fth | fathom |
access line | |
A·h | ampere hour |
A | ampere |
y | year |
tr oz | troy ounce or apothecary ounce |
anti-hemophilic factor (AHF) unit | |
a | are |
assortment | |
alcoholic strength by mass | |
alcoholic strength by volume | |
atm | standard atmosphere |
at | technical atmosphere |
assembly | |
BtuIT/lb | British thermal unit (international table) per pound |
barrel (US)/d | barrel (US) per day |
bit/s | bit per second |
J/(kg·K) | joule per kilogram kelvin |
J/m | joule per meter |
J/m² | joule per square meter |
J/m⁴ | Joule per meter to the fourth power |
J/mol | joule per mole |
J/(mol·K) | joule per mole kelvin |
credit | |
J·s | joule second |
digit | |
J·m²/kg | joule square meter per kilogram |
K/W | kelvin per watt |
kA | kiloampere |
kA/m² | kiloampere per square meter |
kA/m | kiloampere per meter |
kBq/kg | kilobecquerel per kilogram |
kC | kilocoulomb |
kC/m³ | kilocoulomb per cubic meter |
kC/m² | kilocoulomb per square meter |
keV | kiloelectronvolt |
batting pound | |
Gibit | gibibit |
kg·m/s | kilogram meter per second |
kg·m² | kilogram square meter |
kg·m²/s | kilogram square meter per second |
kg/dm³ | kilogram per cubic decimeter |
kg/l | kilogram per liter |
calth/g | calorie (thermochemical) per gram |
kgf | kilogram-force |
kgf·m | kilogram-force meter |
kgf·m/s | kilogram-force meter per second |
barrel, imperial | |
kgf/m² | kilogram-force per square meter |
kJ/K | kilojoule per kelvin |
kJ/kg | kilojoule per kilogram |
kJ/(kg·K) | kilojoule per kilogram kelvin |
kJ/mol | kilojoule per mole |
kmol | kilomole |
kmol/m³ | kilomole per cubic meter |
kN | kilonewton |
kN·m | kilonewton meter |
kΩ | kiloohm |
kΩ·m | kiloohm meter |
kp | kilopond |
ks | kilosecond |
kS | kilosiemens |
kS/m | kilosiemens per meter |
kV/m | kilovolt per meter |
kWb/m | kiloweber per meter |
ly | light year |
l/mol | liter per mole |
lm·h | lumen hour |
lm/m² | lumen per square meter |
lm/W | lumen per watt |
lm·s | lumen second |
lx·h | lux hour |
lx·s | lux second |
Mx | maxwell |
MA/m² | megaampere per square meter |
MBq/kg | megabecquerel per kilogram |
Gbit | gigabit |
MC/m³ | megacoulomb per cubic meter |
cycle | |
MC/m² | megacoulomb per square meter |
MeV | megaelectronvolt |
Mg/m³ | megagram per cubic meter |
MN | meganewton |
MN·m | meganewton meter |
MΩ | megaohm |
MΩ·m | megaohm meter |
MS/m | megasiemens per meter |
MV | megavolt |
MV/m | megavolt per meter |
J/m³ | joule per cubic meter |
Gbit/s | gigabit per second |
m⁻²/s | reciprocal square meter per second |
inch per linear foot | |
m⁴ | meter to the fourth power |
µA | microampere |
µbar | microbar |
µC | microcoulomb |
µC/m³ | microcoulomb per cubic meter |
µC/m² | microcoulomb per square meter |
µF/m | microfarad per meter |
µH | microhenry |
µH/m | microhenry per meter |
µN | micronewton |
µN·m | micronewton meter |
µΩ | microohm |
µΩ·m | microohm meter |
µPa | micropascal |
µrad | microradian |
µs | microsecond |
µS | microsiemens |
bar | bar [unit of pressure] |
base box | |
fbm | board foot |
BHP | brake horse power |
billion (EUR) | |
bbl (US) | dry barrel (US) |
barrel (US) | barrel (US) |
hundred board foot | |
Bq | becquerel |
BtuIT | British thermal unit (international table) |
bu (US) | bushel (US) |
bushel (UK) | bushel (UK) |
call | |
mF | millifarad |
mGal | milligal |
mg/m | milligram per meter |
mGy | milligray |
mH | millihenry |
mJ | millijoule |
mm/s | millimeter per second |
mm²/s | millimeter squared per second |
mmol | millimole |
mol/kg | mole per kilogram |
mN | millinewton |
Kibit | kibibit |
mN/m | millinewton per meter |
mΩ·m | milliohm meter |
mPa·s | millipascal second |
mrad | milliradian |
ms | millisecond |
mS | millisiemens |
mSv | millisievert |
mT | millitesla |
µV/m | microvolt per meter |
mV/m | millivolt per meter |
mW | milliwatt |
mW/m² | milliwatt per square meter |
mWb | milliweber |
mol | mole |
mol/dm³ | mole per cubic decimeter |
mol/m³ | mole per cubic meter |
kbit | kilobit |
mol/l | mole per liter |
nA | nanoampere |
nC | nanocoulomb |
nF | nanofarad |
nF/m | nanofarad per meter |
nH | nanohenry |
nH/m | nanohenry per meter |
nm | nanometer |
nΩ·m | nanoohm meter |
ns | nanosecond |
nT | nanotesla |
nW | nanowatt |
Np | neper |
Np/s | neper per second |
pm | picometer |
N·m·s | newton meter second |
N·m²/kg² | newton square meter per square kilogram |
N/m² | newton per square meter |
N/mm² | newton per square millimeter |
N·s | newton second |
N·s/m | newton second per meter |
octave | |
Ω·cm | ohm centimeter |
Ω·m | ohm meter |
1 | one |
pc | parsec |
Pa/K | pascal per kelvin |
Pa·s | pascal second |
Pa·s/m³ | pascal second per cubic meter |
Pa·s/m | Pascal second per meter |
PJ | petajoule |
phon | |
cP | centipoise |
pA | picoampere |
pC | picocoulomb |
pF/m | picofarad per meter |
pH | picohenry |
kbit/s | kilobit per second |
pW | picowatt |
pW/m² | picowatt per square meter |
lbf | pound-force |
kVAh | kilovolt ampere hour |
mC/kg | millicoulomb per kilogram |
rad | rad |
rad | radian |
rad·m²/mol | radian square meter per mole |
rad·m²/kg | radian square meter per kilogram |
rad/m | radian per meter |
Å⁻¹ | reciprocal angstrom |
m⁻³ | reciprocal cubic meter |
m⁻³/s | reciprocal cubic meter per second |
eV⁻¹/m³ | reciprocal electron volt per cubic meter |
H⁻¹ | reciprocal henry |
coil group | |
J⁻¹/m³ | reciprocal joule per cubic meter |
K⁻¹ | reciprocal kelvin or kelvin to the power minus one |
m⁻¹ | reciprocal meter |
m⁻² | reciprocal square meter |
min⁻¹ | reciprocal minute |
mol⁻¹ | reciprocal mole |
Pa⁻¹ | reciprocal pascal or pascal to the power minus one |
s⁻¹ | reciprocal second |
s⁻¹/m² | reciprocal second per square meter |
carrying capacity in metric ton | |
cd | candela |
°C | degree Celsius |
hundred | |
card | |
cg | centigram |
C/kg | coulomb per kilogram |
hundred leave | |
cl | centiliter |
cm² | square centimeter |
cm³ | cubic centimeter |
cm | centimeter |
hundred pack | |
cental (UK) | |
C | coulomb |
content gram | |
metric carat | |
content ton (metric) | |
Ci | curie |
cwt (US) | hundred pound (cwt) / hundred weight (US) |
cwt (UK) | hundred weight (UK) |
kW·h/h | kilowatt hour per hour |
lot [unit of weight] | |
s⁻¹/sr | reciprocal second per steradian |
S/m | siemens per meter |
Mibit | mebibit |
S·m²/mol | siemens square meter per mole |
Sv | sievert |
sone | |
cm²/erg | square centimeter per erg |
cm²/(sr·erg) | square centimeter per steradian erg |
m·K | meter kelvin |
m²·K/W | square meter kelvin per watt |
s⁻¹/(sr·m²) | reciprocal second per steradian square meter |
m²/J | square meter per joule |
m²/kg | square meter per kilogram |
m²/mol | square meter per mole |
pen gram (protein) | |
m²/sr | square meter per steradian |
m²/(sr·J) | square meter per steradian joule |
m²/(V·s) | square meter per volt second |
sr | steradian |
THz | terahertz |
TJ | terajoule |
TW | terawatt |
TW·h | terawatt hour |
T | tesla |
tex (g/km) | tex |
calth | calorie (thermochemical) |
Mbit | megabit |
calth/(g·K) | calorie (thermochemical) per gram kelvin |
calth/(s·cm·K) | calorie (thermochemical) per second centimeter kelvin |
calth/(s·cm²·K) | calorie (thermochemical) per second square centimeter kelvin |
t/m³ | tonne per cubic meter |
y (tropical) | tropical years |
u | unified atomic mass unit |
var | var |
V²/K² | volt squared per kelvin squared |
V·A | volt - ampere |
V/cm | volt per centimeter |
V/K | volt per kelvin |
mV/K | millivolt per kelvin |
kg/cm² | kilogram per square centimeter |
V/m | volt per meter |
V/mm | volt per millimeter |
W/K | watt per kelvin |
W/(m·K) | watt per meter kelvin |
W/m² | watt per square meter |
W/(m²·K) | watt per square meter kelvin |
W/(m²·K⁴) | watt per square meter kelvin to the fourth power |
W/sr | watt per steradian |
W/(sr·m²) | watt per steradian square meter |
Wb/m | weber per meter |
R/s | roentgen per second |
Wb/mm | weber per millimeter |
' | minute [unit of angle] |
"""" | second [unit of angle] |
book | |
round | |
number of words | |
in⁴ | inch to the fourth power |
calIT | calorie (international table) |
calIT/(s·cm·K) | calorie (international table) per second centimeter kelvin |
calIT/(s·cm²·K) | calorie (international table) per second square centimeter kelvin |
J·m² | joule square meter |
kg/mol | kilogram per mole |
calIT/g | calorie (international table) per gram |
calIT/(g·K) | calorie (international table) per gram kelvin |
MC | megacoulomb |
MJ/s | megajoule per second |
µW | microwatt |
µT | microtesla |
µV | microvolt |
mN·m | millinewton meter |
µW/m² | microwatt per square meter |
mC | millicoulomb |
mmol/kg | millimole per kilogram |
mC/m³ | millicoulomb per cubic meter |
mC/m² | millicoulomb per square meter |
dyn/cm² | dyne per square centimeter |
rem | rem |
s/m³ | second per cubic meter |
s/(rad·m³) | second per radian cubic meter |
J/g | joule per gram |
daa | dekare |
ten day | |
d | days |
dry pound | |
° | degree [unit of angle] |
decade | |
dg | decigram |
dag | dekagram |
dl | Deciliters |
dam³ | cubic dekameter |
dm² | square decimeter |
standard kiloliter | |
dm³ | cubic decimeter |
dm | decimeter |
dN·m | decinewton meter |
dozen piece | |
dozen pair | |
displacement tonnage | |
dram (US) | |
dram (UK) | |
dozen roll | |
dry ton | |
dt | decitonne |
dyn | dyne |
pennyweight | |
dyn/cm | dyne per centimeter |
DOZ | dozen |
dozen pack | |
N/cm² | newton per square centimeter |
MW·h/h | megawatt hour per hour |
MW/Hz | megawatt per hertz |
mA·h | milliampere hour |
deg da | degree day |
gigacalorie | |
mille | |
kcalIT | kilocalorie (international table) |
kcalth/h | kilocalorie (thermochemical) per hour |
BtuIT/h | million Btu(IT) per hour |
ft³/s | cubic foot per second |
t/h | tonne per hour |
ping | |
Mbit/s | megabit per second |
shares | |
TEU | |
tyre | |
active unit | |
dose | |
air dry metric ton | |
strand | |
m²/l | square meter per liter |
l/h | liter per hour |
foot per thousand | |
Gbyte | gigabyte |
Tbyte | terabyte |
Pbyte | petabyte |
px | pixel |
megapixel | |
dpi | dots per inch |
gross kilogram | |
ppht | part per hundred thousand |
kgf/mm² | Kilogram-force per square millimeter |
kgf/cm² | kilogram-force per square centimeter |
J/cm² | joule per square centimeter |
kgf·m/cm² | kilogram-force meter per square centimeter |
mΩ | milliohm |
kW·h/m³ | kilowatt hour per cubic meter |
kW·h/K | kilowatt hour per kelvin |
service unit | |
working day | |
accounting unit | |
job | |
run foot | |
test | |
trip | |
use | |
well | |
zone | |
Ebit/s | exabit per second |
Eibyte | exbibyte |
Pibyte | pebibyte |
Tibyte | tebibyte |
Gibyte | gibibyte |
Mibyte | mebibyte |
Kibyte | kibibyte |
Eibit/m | exbibit per meter |
Eibit/m² | exbibit per square meter |
Eibit/m³ | exbibit per cubic meter |
Gbyte/s | gigabyte per second |
Gibit/m | gibibit per meter |
Gibit/m² | gibibit per square meter |
Gibit/m³ | gibibit per cubic meter |
Kibit/m | kibibit per meter |
Kibit/m² | kibibit per square meter |
Kibit/m³ | kibibit per cubic meter |
Mibit/m | mebibit per meter |
Mibit/m² | mebibit per square meter |
Mibit/m³ | mebibit per cubic meter |
Pbit | petabit |
Pbit/s | petabit per second |
Pibit/m | pebibit per meter |
Pibit/m² | pebibit per square meter |
Pibit/m³ | pebibit per cubic meter |
Tbit | terabit |
Tbit/s | terabit per second |
Tibit/m | tebibit per meter |
Tibit/m³ | tebibit per cubic meter |
Tibit/m² | tebibit per square meter |
bit/m | bit per meter |
bit/m² | bit per square meter |
cm⁻¹ | reciprocal centimeter |
d⁻¹ | reciprocal day |
dm³/h | cubic decimeter per hour |
kg/h | kilogram per hour |
kmol/s | kilomoles per second |
mol/s | moles per second |
°/s | degree per second |
mm/(°C·m) | millimeter per degree Celsius meter |
°C/K | degree Celsius per kelvin |
hPa/bar | hectopascal per bar |
each | |
electronic mail box | |
equivalent gallon | |
bit/m³ | bit per cubic meter |
K/K | kelvin per kelvin |
kPa/bar | kilopascal per bar |
mbar/bar | millibar per bar |
MPa/bar | megapascal per bar |
P/bar | poise per bar |
Pa/bar | pascal per bar |
mA/in | milliampere per inch |
K/h | kelvin per hour |
K/min | kelvin per minute |
K/s | kelvin per second |
slug | slug |
g/K | gram per kelvin |
kg/K | kilogram per kelvin |
mg/K | milligram per kelvin |
lbf/ft | pound-force per foot |
kg·cm² | kilogram square centimeter |
kg·mm² | kilogram square millimeter |
lb·in² | pounds square inch |
lbf·in | pound-force inch |
lbf·ft/A | pound-force foot per ampere |
g/dm³ | gram per cubic decimeter |
kg/kmol | kilogram per kilomol |
g/Hz | gram per hertz |
g/d | gram per day |
g/h | gram per hour |
g/min | gram per minute |
g/s | gram per second |
kg/d | kilogram per day |
kg/min | kilogram per minute |
mg/d | milligram per day |
mg/min | milligram per minute |
mg/s | milligram per second |
g/(d·K) | gram per day kelvin |
g/(h·K) | gram per hour kelvin |
g/(min·K) | gram per minute kelvin |
g/(s·K) | gram per second kelvin |
kg/(d·K) | kilogram per day kelvin |
kg/(h·K) | kilogram per hour kelvin |
kg/(min·K) | kilogram per minute kelvin |
kg/(s·K) | kilogram per second kelvin |
mg/(d·K) | milligram per day kelvin |
mg/(h·K) | milligram per hour kelvin |
mg/(min·K) | milligram per minute kelvin |
mg/(s·K) | milligram per second kelvin |
N/mm | newton per millimeter |
lbf/in | pound-force per inch |
rd (US) | rod [unit of distance] |
µm/K | micrometer per kelvin |
cm/K | centimeter per kelvin |
m/K | meter per kelvin |
mm/K | millimeter per kelvin |
mΩ/m | milliohm per meter |
Ω/mi | ohm per mile (statute mile) |
Ω/km | ohm per kilometer |
mA/(lbf/in²) | milliampere per pound-force per square inch |
1/bar | reciprocal bar |
mA/bar | milliampere per bar |
°C/bar | degree Celsius per bar |
K/bar | kelvin per bar |
g/(d·bar) | gram per day bar |
g/(h·bar) | gram per hour bar |
g/(min·bar) | gram per minute bar |
g/(s·bar) | gram per second bar |
kg/(d·bar) | kilogram per day bar |
kg/(h·bar) | kilogram per hour bar |
kg/(min·bar) | kilogram per minute bar |
kg/(s·bar) | kilogram per second bar |
mg/(d·bar) | milligram per day bar |
mg/(h·bar) | milligram per hour bar |
mg/(min·bar) | milligram per minute bar |
mg/(s·bar) | milligram per second bar |
g/bar | gram per bar |
mg/bar | milligram per bar |
mA/mm | milliampere per millimeter |
Pa·s/K | pascal second per kelvin |
inH₂O | inch of water |
inHg | inch of mercury |
water horsepower | |
bar/K | bar per kelvin |
hPa/K | hectopascal per kelvin |
kPa/K | kilopascal per kelvin |
mbar/K | millibar per kelvin |
MPa/K | megapascal per kelvin |
P/K | poise per kelvin |
V/(l·min) | volt per liter minute |
N·cm | newton centimeter |
Nm/° | newton meter per degree |
N·m/A | newton meter per ampere |
bar·l/s | bar liter per second |
bar·m³/s | bar cubic meter per second |
hPa·l/s | hectopascal liter per second |
hPa·m³/s | hectopascal cubic meter per second |
mbar·l/s | millibar liter per second |
mbar·m³/s | millibar cubic meter per second |
MPa·l/s | megapascal liter per second |
MPa·m³/s | megapascal cubic meter per second |
Pa·l/s | pascal liter per second |
°F | degree Fahrenheit |
F | farad |
fiber meter | |
kft³ | thousand cubic foot |
Hundreds of cubic feet | |
µmol | micromole |
FIT | failures in time |
flake ton | |
ft | foot |
lb/ft² | pound per square foot |
ft/min | foot per minute |
ft/s | foot per second |
ft² | square foot |
ft³ | cubic foot |
Pa·m³/s | pascal cubic meter per second |
cm/bar | centimeter per bar |
m/bar | meter per bar |
mm/bar | millimeter per bar |
in²/s | square inch per second |
m²/(s·K) | square meter per second kelvin |
St/K | stokes per kelvin |
g/(cm³·bar) | gram per cubic centimeter bar |
g/(dm³·bar) | gram per cubic decimeter bar |
g/(l·bar) | gram per liter bar |
g/(m³·bar) | gram per cubic meter bar |
g/(ml·bar) | gram per milliliter bar |
kg/(cm³·bar) | kilogram per cubic centimeter bar |
kg/(l·bar) | kilogram per liter bar |
kg/(m³·bar) | kilogram per cubic meter bar |
N·m/kg | newton meter per kilogram |
gal (US) /min | US gallon per minute |
lbf·ft/lb | pound-force foot per pound |
cup (US) | cup [unit of volume] |
pk (US) | peck |
tablespoon (US) | tablespoon (US) |
teaspoon (US) | teaspoon (US) |
st | stere |
cm³/K | cubic centimeter per kelvin |
l/K | liter per kelvin |
m³/K | cubic meter per kelvin |
gal (UK) /min | Imperial gallon per minute |
ml/K | milliliter per kelvin |
kg/cm³ | kilogram per cubic centimeter |
oz/yd³ | ounce (avoirdupois) per cubic yard |
g/(cm³·K) | gram per cubic centimeter kelvin |
g/(dm³·K) | gram per cubic decimeter kelvin |
g/(l·K) | gram per liter kelvin |
g/(m³·K) | gram per cubic meter kelvin |
g/(ml·K) | gram per milliliter kelvin |
kg/(cm³·K) | kilogram per cubic centimeter kelvin |
kg/(l·K) | kilogram per liter kelvin |
kg/(m³·K) | kilogram per cubic meter kelvin |
m²/(s·bar) | square meter per second bar |
µS/cm | microsiemens per centimeter |
µS/m | microsiemens per meter |
nS/cm | nanosiemens per centimeter |
nS/m | nanosiemens per meter |
St/bar | stokes per bar |
cm³/d | cubic centimeter per day |
cm³/h | cubic centimeter per hour |
cm³/min | cubic centimeter per minute |
gal/h | gallon (US) per hour |
l/s | liter per second |
m³/d | cubic meter per day |
m³/min | cubic meter per minute |
ml/d | milliliter per day |
ml/h | milliliter per hour |
in³/h | cubic inch per hour |
in³/min | cubic inch per minute |
in³/s | cubic inch per second |
mA/(l·min) | milliampere per liter minute |
V/bar | volt per bar |
cm³/(d·K) | cubic centimeter per day kelvin |
cm³/(h·K) | cubic centimeter per hour kelvin |
cm³/(min·K) | cubic centimeter per minute kelvin |
cm³/(s·K) | cubic centimeter per second kelvin |
l/(d·K) | liter per day kelvin |
l/(h·K) | liter per hour kelvin |
l/(min·K) | liter per minute kelvin |
l/(s·K) | liter per second kelvin |
m³/(d·K) | cubic meter per day kelvin |
m³/(h·K) | cubic meter per hour kelvin |
m³/(min·K) | cubic meter per minute kelvin |
m³/(s·K) | cubic meter per second kelvin |
ml/(d·K) | milliliter per day kelvin |
ml/(h·K) | milliliter per hour kelvin |
ml/(min·K) | milliliter per minute kelvin |
ml/(s·K) | milliliter per second kelvin |
mm⁴ | millimeter to the fourth power |
cm³/(d·bar) | cubic centimeter per day bar |
cm³/(h·bar) | cubic centimeter per hour bar |
cm³/(min·bar) | cubic centimeter per minute bar |
cm³/(s·bar) | cubic centimeter per second bar |
l/(d·bar) | liter per day bar |
l/(h·bar) | liter per hour bar |
l/(min·bar) | liter per minute bar |
l/(s·bar) | liter per second bar |
m³/(d·bar) | cubic meter per day bar |
m³/(h·bar) | cubic meter per hour bar |
m³/(min·bar) | cubic meter per minute bar |
m³/(s·bar) | cubic meter per second bar |
ml/(d·bar) | milliliter per day bar |
ml/(h·bar) | milliliter per hour bar |
ml/(min·bar) | milliliter per minute bar |
ml/(s·bar) | milliliter per second bar |
cm³/bar | cubic centimeter per bar |
l/bar | liter per bar |
m³/bar | cubic meter per bar |
ml/bar | milliliter per bar |
µH/kΩ | microhenry per kiloohm |
µH/Ω | microhenry per ohm |
gal (US)/d | gallon (US) per day |
GBq | gigabecquerel |
gram, dry weight | |
lb/gal (US) | pound per gallon (US) |
g/m | gram per meter (gram per 100 centimeters) |
gi F/S | gram of fissile isotope |
great gross | |
gi (US) | gill (US) |
gram, including container | |
gi (UK) | gill (UK) |
gram, including inner packaging | |
g/ml | gram per milliliter |
g/l | gram per liter |
dry gal (US) | dry gallon (US) |
gal (UK) | gallon (UK) |
gal (US) | gallon (US) |
g/m² | gram per square meter |
mg/m² | milligram per square meter |
mg/m³ | milligram per cubic meter |
µg/m³ | microgram per cubic meter |
g | gram |
gr | grain |
gr | gross |
gross register ton | |
gross ton | |
GJ | gigajoule |
GW·h | gigawatt hour |
H/kΩ | henry per kiloohm |
H/Ω | henry per ohm |
mH/kΩ | millihenry per kiloohm |
mH/Ω | millihenry per ohm |
Pa·s/bar | pascal second per bar |
µBq | microbecquerel |
1/y | reciprocal year |
1/h | reciprocal hour |
1/mo | reciprocal month |
°C/h | degree Celsius per hour |
°C/min | degree Celsius per minute |
°C/s | degree Celsius per second |
cm²/g | square centimeter per gram |
dam² | square dekameter |
hm² | square hectometer |
hm³ | cubic hectometer |
km³ | cubic kilometer |
blank | |
V/(lbf/in²) | volt square inch per pound-force |
V/in | volt per inch |
V/µs | volt per microsecond |
%/K | percent per kelvin |
Ω/m | ohm per meter |
°/m | degree per meter |
µF/km | microfarad per kilometer |
µg/l | microgram per liter |
µm² | square micrometer (square micron) |
A/kg | ampere per kilogram |
A²·s | ampere squared second |
F/km | farad per kilometer |
Hz·m | hertz meter |
K·m/W | kelvin meter per watt |
MΩ/km | megaohm per kilometer |
MΩ/m | megaohm per meter |
MA | megaampere |
MHz·km | megahertz kilometer |
N/A | newton per ampere |
N·m·W⁻⁰‧⁵ | newton meter watt to the power minus 0.5 |
Pa/m | pascal per meter |
S/cm | siemens per centimeter |
TΩ | teraohm |
V·s/m | volt second per meter |
V/s | volt per second |
W/m³ | watt per cubic meter |
aF | attofarad |
cm/h | centimeter per hour |
cm⁻³ | reciprocal cubic centimeter |
dB/km | decibel per kilometer |
dB/m | decibel per meter |
kg/bar | kilogram per bar |
(kg/dm³)/K | kilogram per cubic decimeter per kelvin |
(kg/dm³)/bar | kilogram per cubic decimeter per bar |
kg/(m²·s) | kilogram per square meter second |
in/revolution | inch per two pi radiant |
m/(V·s) | meter per volt second |
m²/N | square meter per newton |
m³/m³ | cubic meter per cubic meter |
mS/cm | millisiemens per centimeter |
mV/min | millivolt per minute |
mg/cm² | milligram per square centimeter |
mg/g | milligram per gram |
ml/m³ | milliliter per cubic meter |
mm/y | millimeter per year |
mm/h | millimeter per hour |
mmol/g | millimole per gram |
pPa/km | picopascal per kilometer |
ps | picosecond |
%/mo | percent per month |
%/hbar | percent per hectobar |
%/daK | percent per dekakelvin |
W/m | watt per meter |
daPa | dekapascal |
g/mm | gram per millimeter |
MW | module width |
cm H₂O | conventional centimeter of water |
Fg | French gauge |
U | rack unit |
mm/min | millimeter per minute |
bp | big point |
l/kg | liter per kilogram |
g·mm | gram millimeter |
1/wk | reciprocal week |
piece | |
MΩ·km | megaohm kilometer |
%/Ω | percent per ohm |
%/° | percent per degree |
%/10000 | percent per ten thousand |
%/100000 | percent per one hundred thousand |
%/100 | percent per hundred |
%/1000 | percent per thousand |
%/V | percent per volt |
%/bar | percent per bar |
%/in | percent per inch |
%/m | percent per meter |
hank | |
ha | hectare |
hbar | hectobar |
hundred boxes | |
hundred count | |
hundred kilogram, dry weight | |
head | |
hg | hectogram |
Hundreds of cubic feet | |
hundred international unit | |
metric hp | metric horse power |
hundred kilogram, net mass | |
hl | hectoliter |
mile/h | mile per hour (statute mile) |
Mm³ | million cubic meter |
hm | hectometers |
mm Hg | conventional millimeter of mercury |
mm H₂O | conventional millimeter of water |
hectoliter of pure alcohol | |
Hz | hertz |
h | hours |
in·lb | inch pound (pound inch) |
person | |
in | inch |
in² | square inch |
in³ | cubic inch |
international sugar degree | |
in/s | inch per second |
in/s² | inch per square second |
%/mm | percent per millimeter |
/psi | per mille per psi |
°API | degree API |
°Bé | degree Baume (origin scale) |
°Bé (US heavy) | degree Baume (US heavy) |
°Bé (US light) | degree Baume (US light) |
°Balling | degree Balling |
°Bx | degree Brix |
°F·h·ft²/Btuth | degree Fahrenheit hour square foot per British thermal unit (thermochemical) |
J/kg | joule per kilogram |
°F/K | degree Fahrenheit per kelvin |
°F/bar | degree Fahrenheit per bar |
°F·h·ft²/BtuIT | degree Fahrenheit hour square foot per British thermal unit (international table) |
°F/h | degree Fahrenheit per hour |
°F/min | degree Fahrenheit per minute |
°F/s | degree Fahrenheit per second |
1/°F | reciprocal degree Fahrenheit |
°Oechsle | degree Oechsle |
°R/h | degree Rankine per hour |
°R/min | degree Rankine per minute |
°R/s | degree Rankine per second |
°Tw | degree Twaddell |
µP | micropoise |
µg/kg | microgram per kilogram |
(µg/m³)/K | microgram per cubic meter kelvin |
(µg/m³)/bar | microgram per cubic meter bar |
µl/l | microliter per liter |
Bd | baud |
Btu | British thermal unit (mean) |
BtuIT·ft/(h·ft²·°F) | British thermal unit (international table) foot per hour (square foot) degree Fahrenheit |
BtuIT·in/(h·ft²·°F) | British thermal unit (international table) inch per hour (square foot) degree Fahrenheit |
BtuIT·in/(s·ft²·°F) | British thermal unit (international table) inch per second (square foot) degree Fahrenheit |
BtuIT/(lb·°F) | British thermal unit (international table) per pound degree Fahrenheit |
BtuIT/min | British thermal unit (international table) per minute |
BtuIT/s | British thermal unit (international table) per second |
Btuth·ft/(h·ft²·°F) | British thermal unit (thermochemical) foot per hour square foot degree Fahrenheit |
Btuth/h | British thermal unit (thermochemical) per hour |
Btuth·in/(h·ft²·°F) | British thermal unit (thermochemical) inch per hour square foot degree Fahrenheit |
Btuth·in/(s·ft²·°F) | British thermal unit (thermochemical) inch per second square foot degree Fahrenheit |
Btuth/(lb·°F) | British thermal unit (thermochemical) per pound degree Fahrenheit |
Btuth/min | British thermal unit (thermochemical) per minute |
Btuth/s | British thermal unit (thermochemical) per second |
C·m²/kg | coulomb square meter per kilogram |
MBd | megabaud |
W·s | watt second |
bar/bar | bar per bar |
bbl (UK liq.) | barrel (UK petroleum) |
bbl (UK liq.)/min | barrel (UK petroleum) per minute |
bbl (UK liq.)/d | barrel (UK petroleum) per day |
bbl (UK liq.)/h | barrel (UK petroleum) per hour |
bbl (UK liq.)/s | barrel (UK petroleum) per second |
bbl (US)/h | barrel (US petroleum) per hour |
bbl (US)/s | barrel (US petroleum) per second |
bu (UK)/d | bushel (UK) per day |
bu (UK)/h | bushel (UK) per hour |
bu (UK)/min | bushel (UK) per minute |
bu (UK)/s | bushel (UK) per second |
bu (US dry)/d | bushel (US dry) per day |
bu (US dry)/h | bushel (US dry) per hour |
bu (US dry)/min | bushel (US dry) per minute |
bu (US dry)/s | bushel (US dry) per second |
cN·m | centinewton meter |
cP/K | centipoise per kelvin |
cP/bar | centipoise per bar |
cal | calorie (mean) |
calIT/(g·°C) | calorie (international table) per gram degree Celsius |
calth/(cm·s·°C) | calorie (thermochemical) per centimeter second degree Celsius |
calth/(g·°C) | calorie (thermochemical) per gram degree Celsius |
calth/min | calorie (thermochemical) per minute |
calth/s | calorie (thermochemical) per second |
clo | clo |
(cm/s)/K | centimeter per second per kelvin |
(cm/s)/bar | centimeter per second per bar |
cm³/m³ | cubic centimeter per cubic meter |
cm Hg | centimeter of mercury |
dm³/d | cubic decimeter per day |
dm³/m³ | cubic decimeter per cubic meter |
dm³/min | cubic decimeter per minute |
dm³/s | cubic decimeter per second |
dyn·cm | dyne centimeter |
fl oz (UK)/d | ounce (UK fluid) per day |
fl oz (UK)/h | ounce (UK fluid) per hour |
fl oz (UK)/min | ounce (UK fluid) per minute |
fl oz (UK)/s | ounce (UK fluid) per second |
fl oz (US)/d | ounce (US fluid) per day |
J/K | joule per kelvin |
MJ/kg | megajoule per kilogram |
MJ/m³ | megajoule per cubic meter |
pipeline joint | |
J | joule |
hundred meter | |
number of jewels | |
kilowatt demand | |
fl oz (US)/h | ounce (US fluid) per hour |
fl oz (US)/min | ounce (US fluid) per minute |
fl oz (US)/s | ounce (US fluid) per second |
ft/°F | foot per degree Fahrenheit |
ft/h | foot per hour |
ft·lbf/h | foot pound-force per hour |
ft·lbf/min | foot pound-force per minute |
ft/psi | foot per psi |
(ft/s)/°F | foot per second per degree Fahrenheit |
(ft/s)/psi | foot per second per psi |
kilovolt ampere reactive demand | |
1/ft³ | reciprocal cubic foot |
ft³/°F | cubic foot per degree Fahrenheit |
ft³/d | cubic foot per day |
ft³/psi | cubic foot per psi |
ft H₂O | foot of water |
ft Hg | foot of mercury |
gal (UK)/d | gallon (UK) per day |
gal (UK)/h | gallon (UK) per hour |
gal (UK)/s | gallon (UK) per second |
kvar·h | kilovolt-ampere reactive hour |
gal (US liq.)/s | gallon (US liquid) per second |
gf/cm² | gram-force per square centimeter |
gi (UK)/d | gill (UK) per day |
gi (UK)/h | gill (UK) per hour |
gi (UK)/min | gill (UK) per minute |
gi (UK)/s | gill (UK) per second |
gi (US)/d | gill (US) per day |
gi (US)/h | gill (US) per hour |
gi (US)/min | gill (US) per minute |
gi (US)/s | gill (US) per second |
gn | standard acceleration of free fall |
gr/gal (US) | grain per gallon (US) |
boiler hp | horsepower (boiler) |
electric hp | horsepower (electric) |
in/°F | inch per degree Fahrenheit |
in/psi | inch per psi |
(in/s)/°F | inch per second per degree Fahrenheit |
(in/s)/psi | inch per second per psi |
1/in³ | reciprocal cubic inch |
kvar | kilovolt ampere (reactive) |
kBd | kilobaud |
kcal | kilocalorie (mean) |
kcal/(m·h·°C) | kilocalorie (international table) per hour meter degree Celsius |
kcalth | kilocalorie (thermochemical) |
kcalth/min | kilocalorie (thermochemical) per minute |
kcalth/s | kilocalorie (thermochemical) per second |
kmol/h | kilomole per hour |
(kmol/m³)/K | kilomole per cubic meter per kelvin |
kl | kiloliter |
(kmol/m³)/bar | kilomole per cubic meter per bar |
kmol/min | kilomole per minute |
l/l | liter per liter |
1/l | reciprocal liter |
lb/°F | pound (avoirdupois) per degree Fahrenheit |
lb·ft² | pound (avoirdupois) square foot |
lb/d | pound (avoirdupois) per day |
lb/(ft·h) | pound per foot hour |
lb/(ft·s) | pound per foot second |
(lb/ft³)/°F | pound (avoirdupois) per cubic foot per degree Fahrenheit |
(lb/ft³)/psi | pound (avoirdupois) per cubic foot per psi |
lb/gal (UK) | pound (avoirdupois) per gallon (UK) |
(lb/h)/°F | pound (avoirdupois) per hour per degree Fahrenheit |
(lb/h)/psi | pound (avoirdupois) per hour per psi |
(lb/in³)/°F | pound (avoirdupois) per cubic inch per degree Fahrenheit |
(lb/in³)/psi | pound (avoirdupois) per cubic inch per psi |
lb/psi | pound (avoirdupois) per psi |
lb/min | pound (avoirdupois) per minute |
lb/(min·°F) | pound (avoirdupois) per minute degree Fahrenheit |
(lb/min)/psi | pound (avoirdupois) per minute per psi |
lb/s | pound (avoirdupois) per second |
(lb/s)/°F | pound (avoirdupois) per second per degree Fahrenheit |
(lb/s)/psi | pound (avoirdupois) per second per psi |
lb/yd³ | pound per cubic yard |
lbf/ft² | pound-force per square foot |
psi/°F | pound-force per square inch per degree Fahrenheit |
psi·in³/s | psi cubic inch per second |
psi·l/s | psi liter per second |
psi·m³/s | psi cubic meter per second |
psi·yd³/s | psi cubic yard per second |
lbf·s/ft² | pound-force second per square foot |
lbf·s/in² | pound-force second per square inch |
1/psi | reciprocal psi |
qt (UK liq.)/d | quart (UK liquid) per day |
qt (UK liq.)/h | quart (UK liquid) per hour |
qt (UK liq.)/min | quart (UK liquid) per minute |
qt (UK liq.)/s | quart (UK liquid) per second |
qt (US liq.)/d | quart (US liquid) per day |
qt (US liq.)/h | quart (US liquid) per hour |
cake | |
kat | katal |
kilocharacter | |
kbar | kilobar |
kg C₅H₁₄ClNO | kilogram of choline chloride |
kg/net eda | kilogram drained net weight |
K | kelvin |
kg | kilogram |
kg/s | kilogram per second |
kg H₂O₂ | kilogram of hydrogen peroxide |
kHz | kilohertz |
kilogram per millimeter width | |
kilogram, including container | |
kilogram, including inner packaging | |
kilosegment | |
kJ | kilojoule |
kg/m | kilogram per meter |
lactic dry material percentage | |
klx | kilolux |
kg met.am. | kilogram of methylamine |
km/h | kilometer per hour |
km² | square kilometer |
kg/m³ | kilogram per cubic meter |
km | kilometers |
kg N | kilogram of nitrogen |
kilogram named substance | |
kn | Nodes |
milliequivalence caustic potash per gram of product | |
kPa | kilopascal |
kg KOH | kilogram of potassium hydroxide (caustic potassium) |
kg K₂O | kilogram of potassium oxide |
kilogram of phosphorus pentoxide (phosphoric anhydride) | |
kR | kiloroentgen |
kg 90 % sdt | kilogram of substance 90 % dry |
kg NaOH | kilogram of sodium hydroxide (caustic soda) |
kit | |
kt | kilotonne |
kg U | kilogram of uranium |
kV·A | kilovolt - ampere |
kvar | kilovar |
kV | kilovolt |
kg/mm | kilogram per millimeter |
kW·h | kilowatt hour |
kg WO₃ | kilogram of tungsten trioxide |
kW | kilowatt |
ml/kg | milliliter per kilogram |
qt (US liq.)/min | quart (US liquid) per minute |
qt (US liq.)/s | quart (US liquid) per second |
(m/s)/K | meter per second per kelvin |
(m/s)/bar | meter per second per bar |
m²·h·°C/kcal | square meter hour degree Celsius per kilocalorie (international table) |
mPa·s/K | millipascal second per kelvin |
mPa·s/bar | millipascal second per bar |
(mg/m³)/K | milligram per cubic meter per kelvin |
(mg/m³)/bar | milligram per cubic meter per bar |
ml/l | milliliter per liter |
l/min | liter per minute |
1/mm³ | reciprocal cubic millimeter |
mm³/m³ | cubic millimeter per cubic meter |
mol/h | mole per hour |
(mol/kg)/K | mole per kilogram per kelvin |
(mol/kg)/bar | mole per kilogram per bar |
(mol/l)/K | mole per liter per kelvin |
(mol/l)/bar | mole per liter per bar |
(mol/m³)/K | mole per cubic meter per kelvin |
(mol/m³)/bar | mole per cubic meter per bar |
mol/min | mole per minute |
mrem | milliroentgen-equivalent man |
ng/kg | nanogram per kilogram |
oz/d | ounce (avoirdupois) per day |
oz/h | ounce (avoirdupois) per hour |
oz/min | ounce (avoirdupois) per minute |
oz/s | ounce (avoirdupois) per second |
oz/gal (UK) | ounce (avoirdupois) per gallon (UK) |
oz/gal (US) | ounce (avoirdupois) per gallon (US) |
oz/in³ | ounce (avoirdupois) per cubic inch |
ozf | ounce (avoirdupois)-force |
ozf·in | ounce (avoirdupois)-force inch |
pS/m | picosiemens per meter |
pk (UK) | peck (UK) |
pk (UK)/d | peck (UK) per day |
pk (UK)/h | peck (UK) per hour |
pk (UK)/min | peck (UK) per minute |
pk (UK)/s | peck (UK) per second |
pk (US dry)/d | peck (US dry) per day |
pk (US dry)/h | peck (US dry) per hour |
pk (US dry)/min | peck (US dry) per minute |
pk (US dry)/s | peck (US dry) per second |
psi/psi | psi per psi |
pt (UK)/d | pint (UK) per day |
pt (UK)/h | pint (UK) per hour |
pt (UK)/min | pint (UK) per minute |
pt (UK)/s | pint (UK) per second |
pt (US liq.)/d | pint (US liquid) per day |
pt (US liq.)/h | pint (US liquid) per hour |
pt (US liq.)/min | pint (US liquid) per minute |
pt (US liq.)/s | pint (US liquid) per second |
slug/d | slug per day |
slug/(ft·s) | slug per foot second |
slug/ft³ | slug per cubic foot |
slug/h | slug per hour |
slug/min | slug per minute |
slug/s | slug per second |
t/K | metric ton per kelvin |
t/bar | metric ton per bar |
t/d | metric ton per day |
(t/d)/K | metric ton per day per kelvin |
(t/d)/bar | metric ton per day per bar |
(t/h)/K | metric ton per hour per kelvin |
(t/h)/bar | metric ton per hour per bar |
(t/m³)/K | metric ton per cubic meter per kelvin |
(t/m³)/bar | metric ton per cubic meter per bar |
t/min | metric ton per minute |
(t/min)/K | metric ton per minute per kelvin |
(t/min)/bar | metric ton per minute per bar |
t/s | metric ton per second |
(t/s)/K | metric ton per second per kelvin |
(t/s)/bar | metric ton per second per bar |
British shipping ton | ton (UK shipping) |
ton (UK)/d | long ton per day |
(US) shipping ton | ton (US shipping) |
ton (US)/°F | short ton per degree Fahrenheit |
ton (US)/d | short ton per day |
ton (US)/(h·°F) | short ton per hour degree Fahrenheit |
(ton (US)/h)/psi | short ton per hour per psi |
ton (US)/psi | short ton per psi |
ton·l/yd³ (UK) | ton (UK long) per cubic yard |
ton·s/yd³ (US) | ton (US short) per cubic yard |
ton·sh-force | ton-force (US short) |
y (365 days) | normal years |
y (sidereal) | sidereal years |