Unit List
Angle
Angular Acceleration
Units: Angular Acceleration
Title
Names
Base Unit(s)
Relation
Radians per Second Squared
(rad_p_sqs)
rad/s^2
Angular Velocity
Units: Angular Velocity
Title
Names
Base Unit(s)
Relation
Radians per Second
(rad_p_s)
rad/s
Plane Angle
Units: Plane Angle
Title
Names
Base Unit(s)
Relation
Arcminute
arcminute / arcminutes
°
1/60
Arcsecond
arcsecond / arcseconds
arcminute
1/60
Degree
deg / ° / degree / degrees
rad
pi/180
Gradian (Gon)
gra / gradian / gradians / gon / gons
rad
pi/200
Meter per Meter
(m_p_m)
m/m
Radian
rad / radian / radians
m_p_m
1
Turn
turn / turns
°
360
Solid Angle
Units: Solid Angle
Title
Names
Base Unit(s)
Relation
Square Meter per Square Meter
(sqm_p_sqm)
m^2/m^2
Steradian
sr / steradian / steradians
m_p_m
1
Area
Units: Area
Title
Names
Base Unit(s)
Relation
Acre
acre / acres
ch^2
10
Are
a / are / ares
m^2
100
Barn
b / barn / barns
m^2
1E-28
Hectare
(ha)
ha
Rood
rood / roods
yd^2
1210
Section
section / sections
mi^2
1
Square Foot
(sqft)
ft^2
Square Inch
(sqin)
in^2
Square Kilometer
(sqkm)
km^2
Square Meter
(sqm)
m^2
Square Mile
(sqmi)
mi^2
Township
township / townships
section
36
Currency
Units: Currency
Title
Names
Base Unit(s)
Relation
Australian Dollars
AUD
€
exchange rate
Austrian Schilling
ATS / schilling
€
1/13.7603
Belgian Franc
BEF
€
1/40.3399
British Pounds
GBP / £
€
exchange rate
Bulgarian Lev
lev / BGN
€
exchange rate
Canadian Dollars
CAD
€
exchange rate
Cent (USD)
¢ / cent / cents
$
1/100
Croatian Kuna
HRK
€
exchange rate
Cypriot Pound
CYP
€
exchange rate
Czech Koruna
CZK
€
exchange rate
Danish Kroner
DKK
€
exchange rate
Deutche Mark
DEM / mark
€
1/1.95583
Dutch Guilder
NLG / guilder
€
1/2.20371
Estonian Kroon
EEK
€
exchange rate
Euro Cent
eurocent / eurocents
€
1/100
European Euros
EUR / € / euro / euros
Finnish Markka
FIM / markka
€
1/5.94573
French Franc
FRF / franc
€
1/6.55957
Greek Drachma
GRD
€
1/340.750
Hong Kong Dollars
HKD
€
exchange rate
Hungarian Forint
forint / HUF
€
exchange rate
Icelandic Krona
ISK
€
exchange rate
Indonesian Rupiah
IDR
€
exchange rate
Irish Pound
IEP
€
1/0.787564
Italian Lira
ITL / lira
€
1/1936.27
Japanese Yen
JPY / ¥ / yen
€
exchange rate
Latvian Lat
lat / LVL
€
exchange rate
Lithuanian Lit
lit / LTL
€
exchange rate
Luxembourg Franc
LUF
€
1/40.3399
Malaysian Ringgit
MYR
€
exchange rate
Maltese Lira
MTL
€
exchange rate
New Zealand Dollars
NZD
€
exchange rate
Norwegian Kroner
NOK
€
exchange rate
Phillipine Peso
PHP
€
exchange rate
Polish Zloty
zloty / PLN
€
exchange rate
Portuguese Escudo
PTE / escudo
€
1/200.482
Romanian New Leu
leu / RON
€
exchange rate
Russian Ruble
RUB / ruble
€
exchange rate
Singapore Dollars
SGD
€
exchange rate
Slovakian Koruna
SKK
€
exchange rate
Slovenian Tolar
tolar / SIT
€
exchange rate
South African Rand
ZAR
€
exchange rate
South Korean Won
KRW
€
exchange rate
Spanish Peseta
ESP / peseta / pesetas
€
1/166.386
Swedish Krona
SEK
€
exchange rate
Swiss Francs
CHF
€
exchange rate
Thai Bat
THB
€
exchange rate
Turkish New Lira
TRY
€
exchange rate
U.S. Dollars
$ / USD / dollar / dollars
€
exchange rate
Yuan Renmimbi (PR China)
CNY
€
exchange rate
Electricity
Capacitance
Units: Capacitance
Title
Names
Base Unit(s)
Relation
Coulomb per Volt
(C_p_V)
C/V
Farad
F / farad / farads
C_p_V
1
Current Density
Units: Current Density
Title
Names
Base Unit(s)
Relation
Ampere per Meter Squared
(A_p_sqm)
A/m^2
Electric Charge
Units: Electric Charge
Title
Names
Base Unit(s)
Relation
Abcoulomb
abcoulomb / abcoulombs / abC / aC
C
10
Coulomb
C / coulomb / coulombs
s_A
1
Second Ampere
(s_A)
s A
Statcoloumb (Franklin)
statcoulomb / statcoulombs / statC / franklin / Fr / franklins
C
3.3356410E-10 (approximate)
Electric Charge Density
Units: Electric Charge Density
Title
Names
Base Unit(s)
Relation
Coulomb per Cubic Meter
(C_p_cum)
C/m^3
Electric Conductance
Units: Electric Conductance
Title
Names
Base Unit(s)
Relation
Ampere per Volt
(A_p_V)
A/V
Siemens
S / siemens
A_p_V
1
Electric Current
Units: Electric Current
Title
Names
Base Unit(s)
Relation
Abampere
abampere / abA / aA / abamperes
A
10
Ampere
A / ampere / amperes
Electric Field Strength
Units: Electric Field Strength
Title
Names
Base Unit(s)
Relation
Volt per Meter
(V_p_m)
V/m
Electric Flux Density
Units: Electric Flux Density
Title
Names
Base Unit(s)
Relation
Coulomb per Meter Squared
(C_p_sqm)
C/m^2
Electric Potential
Units: Electric Potential
Title
Names
Base Unit(s)
Relation
Abvolt
abvolt / abvolts / abV
V
1E-8
Statvolt
statvolt / statvolts / statV
V
299.792458
Volt
V / volt / volts
W_p_A
1
Watt per Ampere
(W_p_A)
W/A
Electric Resistance
Units: Electric Resistance
Title
Names
Base Unit(s)
Relation
Abohm
abohm / abohms / abΩ
Ω
1E-9
Ohm
Ω / ohm / ohms
V_p_A
1
Statohm
statohm / statohms / statΩ
Ω
8.9875517874E11 (approximate)
Volt per Ampere
(V_p_A)
V/A
Inductance
Units: Inductance
Title
Names
Base Unit(s)
Relation
Henry
H / henry / henrys
Wb_p_A
1
Weber per Ampere
(Wb_p_A)
Wb/A
Permeability
Units: Permeability
Title
Names
Base Unit(s)
Relation
Henry per Meter
(H_p_m)
H/m
Permittivity
Units: Permittivity
Title
Names
Base Unit(s)
Relation
Farad per Meter
(F_p_m)
F/m
Energy
Units: Energy
Title
Names
Base Unit(s)
Relation
British Thermal Unit (IT)
Btu
J
1055.056
Calorie (15 degrees Celcius)
cal_fifteen
J
4.185880 (approximate)
Calorie (capital C)
Calorie / Calories
cal_IT
1000
Calorie (international table)
cal_IT / cal / calorie / calories
J
4.1868
Calorie (mean)
cal_mean
J
4.19002 (approximate)
Calorie (thermochemical)
cal_th
J
4.184
Electron Volt
eV / electron_volt / electron_volts
J
1.602177E-19 (approximate)
Erg
erg / ergs
J
1E-7
Foe
foe / foes
erg
1E51
Foot-Pound Force
(ft_lbf)
ft lbf
Joule
J / joule / joules
N_m
1
Kilowatt Hour
(W_h)
kW h
Watt Hour
(W_h)
W h
Energy Density
Units: Energy Density
Title
Names
Base Unit(s)
Relation
Joule per Cubic Meter
(J_p_cum)
J/m^3
Entropy
Units: Entropy
Title
Names
Base Unit(s)
Relation
Joule per Kelvin
(J_p_K)
J/K
Molar Energy
Units: Molar Energy
Title
Names
Base Unit(s)
Relation
Joule per Mole
(J_p_mol)
J/mol
Molar Entropy
Units: Molar Entropy
Title
Names
Base Unit(s)
Relation
Joule per Mole Kelvin
(J_p_mol_K)
J/(mol K)
Power
Units: Power
Title
Names
Base Unit(s)
Relation
Horse Power
hp / horsepower / horsepowers
W
745.699987158227022
Joule per Second
(J_p_s)
J/s
Pferdestärke
PS / pferdestärke
W
735.49875
Watt
W / watt / watts
J_p_s
1
Specific Energy
Units: Specific Energy
Title
Names
Base Unit(s)
Relation
Joule per Kilogram
(J_p_kg)
J/kg
Specific Entropy
Units: Specific Entropy
Title
Names
Base Unit(s)
Relation
Joule per Kilogram Kelvin
(J_p_kg_K)
J/(kg K)
Thermal Conductivity
Units: Thermal Conductivity
Title
Names
Base Unit(s)
Relation
Watt per Meter Kelvin
(W_p_m_K)
W/(m K)
Force
Units: Force
Title
Names
Base Unit(s)
Relation
Dyne
dyn / dyne / dynes
N
1E-5
Kilopond (Kilogram-Force)
(kpond_c)
kpond
Meter Kilogram per Second Squared
(m_kg_p_sqs)
m kg/s^2
Newton
N / newton / newtons
m_kg_p_sqs
1
Pond (Gram-Force)
pond / ponds / gf
N
0.00980665
Pound Foot per Second Squared
(lb_ft_p_sqs)
lb ft/s^2
Pound-force
lbf / pound_force
N
4.4482216152605
Poundal
poundal / poundals / pdl
lb_ft_p_sqs
1
Dynamic Viscosity
Units: Dynamic Viscosity
Title
Names
Base Unit(s)
Relation
Pascal Second
(Pa_s)
Pa s
Poise
P / poise / poises
Pa_s
0.1
Kinematic Viscosity
Units: Kinematic Viscosity
Title
Names
Base Unit(s)
Relation
Square Meter per Second
(sqm_p_s)
m^2/s
Stokes
St / stokes
sqm_p_s
0.0001
Moment of Force
Units: Moment of Force
Title
Names
Base Unit(s)
Relation
Newton Meter
(N_m)
N m
Pressure
Units: Pressure
Title
Names
Base Unit(s)
Relation
Atmosphere
atm / atmosphere / atmospheres
Pa
101325
Bar
bar / bars
Pa
100000
Millimeter of Mercury
mmHg
atm
1/760
Newton per Meter Squared
(N_p_sqm)
N/m^2
Pascal
Pa / pascal / pascals
N_p_sqm
1
Pound-force per Square Inch
(lbf_p_sqin)
lbf/in^2
Pound-force per Square Inch (psi)
psi
lbf_p_sqin
1
Torr
torr / torrs
atm
1/760
Surface Tension
Units: Surface Tension
Title
Names
Base Unit(s)
Relation
Newton per Meter
(N_p_m)
N/m
Information
Length
Units: Length
Title
Names
Base Unit(s)
Relation
Astronomical Unit
AU / astronomical_unit / astronomical_units
m
149578706600
Centimeter
(cm_c)
cm
Chain
ch / chain / chains
li
100
Decimeter
(dm_c)
dm
Fathom
fathom / fathoms
yd
2
Foot
ft / foot / feet
hand
3
Furlong
fur / furlong / furlongs
yd
220
Hand
hand / hands
in
4
Inch
in / inch / inches
m
0.0254
Kilometer
(km_c)
km
Light Year
ly / lightyear / lightyears
m
9460730472580800
Link
li / link / links
ft
66/100
Meter
m / meter / meters / metre / metres
Mil (1/1000 in)
mil / mils
in
0.001
Mile
mi / mile / miles
ch
80
Millimeter
(mm_c)
mm
Nautical Mile
nautical_mile / nautical_miles
m
1852
Parsec
pc / parsec / parsecs
AU
648000/pi
Rod (pole/perch)
rd / rod / rods
US_ft
16.5
U.S. Survey Foot
US_ft / US_foot / US_feet
US_in
12
U.S. Survey Inch
US_in / US_inch / US_inches
m
100/3937
U.S. Survey Mile
US_mi / US_mile / US_miles
US_ft
5280
Yard
yd / yard / yards
ft
3
Ångström
Å / ångström / angstrom
m
1E-10
Light
Illuminance
Units: Illuminance
Title
Names
Base Unit(s)
Relation
Foot-Candle
fc / footcandle / footcandles
lm_p_sqft
1
Lumen per Foot Squared
(lm_p_sqft)
lm/ft^2
Lumen per Meter Squared
(lm_p_sqm)
lm/m^2
Lux
lx / lux
lm_p_sqm
1
Phot
ph / phot / phots
lx
10000
Irradiance
Units: Irradiance
Title
Names
Base Unit(s)
Relation
Einstein per Meter Squared per Second
(einstein_p_sqm_p_s)
einstein/(s m^2)
Microeinstein per Meter Squared per Second
(microeinstein_p_sqm_p_s)
µeinstein/(s m^2)
Watt per Meter Squared
(W_p_sqm)
W/m^2
Luminance
Units: Luminance
Title
Names
Base Unit(s)
Relation
Candela per Meter Squared
(cd_p_sqm)
cd/m^2
Stilb
sb / stilb / stilbs
cd_p_sqm
10000
Luminous Flux
Units: Luminous Flux
Title
Names
Base Unit(s)
Relation
Candela Steradian
(cd_sr)
cd sr
Lumen
lm / lumen / lumens
cd_sr
1
Luminous Intensity
Units: Luminous Intensity
Title
Names
Base Unit(s)
Relation
Candela
cd / candela / candelas
Radiance
Units: Radiance
Title
Names
Base Unit(s)
Relation
Watt per Square Meter Steradian
(W_p_sqm_sr)
W/(sr m^2)
Radiant Intensity
Units: Radiant Intensity
Title
Names
Base Unit(s)
Relation
Watt per Steradian
(W_p_sr)
W/sr
Magnetism
Magnetic Field Strength
Units: Magnetic Field Strength
Title
Names
Base Unit(s)
Relation
Ampere per Meter
(A_p_m)
A/m
Oersted
Oe / oersted / oersteds
A_p_m
1000/(4*pi)
Magnetic Flux
Units: Magnetic Flux
Title
Names
Base Unit(s)
Relation
Maxwell
Mx / maxwell / maxwells
Wb
1E-8
Volt Seconds
(V_s)
V s
Weber
Wb / weber / webers
V_s
1
Magnetic Flux Density
Units: Magnetic Flux Density
Title
Names
Base Unit(s)
Relation
Gauss
gauss
T
0.0001
Tesla
T / tesla / teslas
Wb_p_sqm
1
Weber per Meter Squared
(Wb_p_sqm)
Wb/m^2
Wave Number
Units: Wave Number
Title
Names
Base Unit(s)
Relation
Reciprocal Meter
(recm)
m^-1
Mass
Units: Mass
Title
Names
Base Unit(s)
Relation
Carat
carat / carats
g
0.2
Cental
cental / centals
lb
100
Dram
dr / dram / drams
g
1.7718451953125
Grain
gr / grain / grains
g
0.06479891
Gram
g / gram / grams
Hektogram
(hg_c)
hg
Kilogram
(kg_c)
kg
Long Hundredweight
l_cwt / long_hundredweight / long_hundredweights
lb
112
Long Ton
l_ton / long_ton / long_tons
lb
2240
Metric Ton (Tonne)
t / tonne / tonnes / ton / tons
g
1000000
Ounce
oz / ounce / ounces
dr
16
Ounce (troy)
oz_t / troy_ounce / troy_ounces
pwt
20
Pennyweight
pwt / pennyweight / pennyweights
gr
24
Pfund
pfund
g
500
Pound
lb / pound / pounds
oz
16
Pound (troy)
lb_t / troy_pound / troy_pounds
oz_t
12
Short Hundredweight
cwt / hundredweight / hundredweights
lb
100
Short Ton
s_ton / short_ton / short_tons
lb
2000
Stone
stone / stones
lb
14
Zentner
zentner
pfund
100
Density
Units: Density
Title
Names
Base Unit(s)
Relation
Atomic Mass Unit
u / atomic_mass_unit / atomic_mass_units
g_p_mol
1
Gram per Cubic Centimeter
(g_p_cucm)
g/cm^3
Gram per Cubic Decimeter
(g_p_cudm)
g/dm^3
Gram per Mole
(g_p_mol)
g/mol
Kilogram per Cubic Meter
(kg_p_cum)
kg/m^3
Mass Fraction
Units: Mass Fraction
Title
Names
Base Unit(s)
Relation
Kilogram per Kilogram
(kg_p_kg)
kg/kg
Radioactivity
Units: Radioactivity
Title
Names
Base Unit(s)
Relation
Becquerel
Bq / becquerel / becquerels
s^-1
1
Curie
Ci / curie / curies
Bq
3.7E10
Absorbed Dose
Units: Absorbed Dose
Title
Names
Base Unit(s)
Relation
Gray
Gy / gray / grays
J_p_kg
1
Rad
rad_radioactivity
Gy
1/100
Absorbed Dose Rate
Units: Absorbed Dose Rate
Title
Names
Base Unit(s)
Relation
Gray per Second
(Gy_p_s)
Gy/s
Dose Equivalent
Units: Dose Equivalent
Title
Names
Base Unit(s)
Relation
Rem
rem_radioactivity
Sv
1/100
Sievert
Sv / sievert / sieverts
J_p_kg
1
Exposure
Units: Exposure
Title
Names
Base Unit(s)
Relation
Coulomb per Kilogram
(C_p_kg)
C/kg
Roentgen
R / roentgen / roentgens
C_p_kg
0.000258
Ratio
Units: Ratio
Title
Names
Base Unit(s)
Relation
Bel
B / bel / bels
Np
0.5*ln(10)
Decibel
(dB_c)
dB
Neper
Np / neper / nepers
Speed
Units: Speed
Title
Names
Base Unit(s)
Relation
Kilometer per Hour
(km_p_h)
km/h
Knot
knot / knots
nautical_mile_p_h
1
Meter per Second
(m_p_s)
m/s
Miles per Hour
(mile_p_h)
mi/h
Miles per Hour
mph
mile_p_h
1
Nautical Mile per Hour
(nautical_mile_p_h)
nautical_mile/h
Acceleration
Units: Acceleration
Title
Names
Base Unit(s)
Relation
Galileo
Gal / galileo / galileos
m_p_sqs
1/100
Gee
gee / gees
m_p_sqs
9.80665
Meter per Second Squared
(m_p_sqs)
m/s^2
Substance
Units: Substance
Title
Names
Base Unit(s)
Relation
Einstein
einstein / einsteins
Mole
mol / mole / moles
Catalytic Activity
Units: Catalytic Activity
Title
Names
Base Unit(s)
Relation
Katal
kat / katal / katals
recs_mol
1
Reciprocal Seconds Mole
(recs_mol)
mol/s
Catalytic Concentration
Units: Catalytic Concentration
Title
Names
Base Unit(s)
Relation
Katal per Cubic Meter
(kat_p_cum)
kat/m^3
Substance Concentration
Units: Substance Concentration
Title
Names
Base Unit(s)
Relation
Mole per Cubic Meter
(mol_p_cum)
mol/m^3
Temperature
Units: Temperature
Title
Names
Base Unit(s)
Relation
Degree Celcius
oC / °C / celcius
K
\x + 273.15
Degrees Fahrenheit
oF / °F / fahrenheit
K
(2298.35+5\x)/9
Degrees Rankine
oR / °R / rankine
K
5\x/9
Kelvin
K / kelvin / kelvins
Time
Units: Time
Title
Names
Base Unit(s)
Relation
Day
d / day / days
h
24
Fortnight
fortnight / fortnights
week
2
Hour
h / hour / hours
min
60
Julian Year
year / years
d
365.25
Minute
min / minute / minutes
s
60
Second
s / second / seconds
Week
week / weeks
d
7
Frequency
Units: Frequency
Title
Names
Base Unit(s)
Relation
Hertz
Hz / hertz
s^-1
1
Volume
Units: Volume
Title
Names
Base Unit(s)
Relation
Centiliter
(cl_c)
cL
Cubic Inch
(cuin)
in^3
Cubic Meter
(cum)
m^3
Deciliter
(dl_c)
dL
Liter
L / l / liter / liters / litre / litres
m^3
0.001
Milliliter
(ml_c)
mL
Cooking
Units: Cooking
Title
Names
Base Unit(s)
Relation
Cup
cup / cups
L
0.250
Dessertspoon
dessertspoon / dessertspoons
teaspoon
2
Tablespoon
tablespoon / tablespoons
teaspoon
3
Teaspoon
teaspoon / teaspoons
L
0.005
Fuel Economy
Units: Fuel Economy
Title
Names
Base Unit(s)
Relation
Kilometer per Liter
(km_p_l)
km/L
Liter per Kilometer
(l_p_km)
L/km
Miles per Gallon
(mile_p_gal)
mi/gal
Miles per Gallon
mpg
mile_p_gal
1
Imperial Capacity
Units: Imperial Capacity
Title
Names
Base Unit(s)
Relation
Imperial Bushel
UK_bu / imperial_bushel / imperial_bushels
UK_gal
8
Imperial Fluid Drachm
UK_fl_dr / imperial_fluid_drachm / imperial_fluid_drachms
imperial_fluid_scuple
3
Imperial Fluid Ounce
UK_fl_oz / imperial_fluid_ounce / imperial_fluid_ounces
L
0.0284130625
Imperial Fluid Scuple
imperial_fluid_scuple / imperial_fluid_scuples
imperial_minim
20
Imperial Gallon
UK_gal / imperial_gallon / imperial_gallons
UK_qt
4
Imperial Gill
UK_gi / imperial_gill / imperial_gills
UK_fl_oz
5
Imperial Minim
imperial_minim / imperial_minims
UK_fl_oz
1/480
Imperial Pint
UK_pt / imperial_pint / imperial_pints
UK_gi
4
Imperial Quart
UK_qt / imperial_quart / imperial_quarts
UK_pt
2
Specific Volume
Units: Specific Volume
Title
Names
Base Unit(s)
Relation
Cubic Meter per Kilogram
(cum_p_kg)
m^3/kg
U.S. Capacity
Units: U.S. Capacity
Title
Names
Base Unit(s)
Relation
U.S. Barrell (oil)
bbl / barrell / barrells
gal
42
U.S. Bushel
bu / bushel / bushels
pk
4
U.S. Dry Pint
dry_pt / dry_pint / dry_pints
in^3
33.6003125
U.S. Dry Quart
dry_qt / dry_quart / dry_quarts
dry_pt
2
U.S. Fluid Drachm
fl_dr / fluid_drachm / fluid_drachms
minim
60
U.S. Fluid Ounce
fl_oz / fluid_ounce / fluid_ounces
in^3
231/128
U.S. Gallon
gal / gallon / gallons
liq_qt
4
U.S. Gill
gi / gill / gills
fl_oz
4
U.S. Liquid Pints
liq_pt / liquid_pint / liquid_pints
gi
4
U.S. Liquid Quarts
liq_qt / liquid_quart / liquid_quarts
liq_pt
2
U.S. Minim
minim / minims
fl_oz
1/480
U.S. Peck
pk / peck / pecks
dry_qt
8