On this page:
2.1 SI prefixes
deci
centi
milli
micro
nano
pico
femto
atto
zepto
yocto
deca
hecto
kilo
mega
giga
tera
peta
exa
zetta
yotta
2.2 Dimensionless Units
Dimensionless
Dimensionless-Number
Dimensionless-Vector
Zero-Measure
Dimensionless-Dimension
Dimensionless-Unit
dimensionless-dimension
1-unit
thing
mol
radian
turn
revolution
cycle
degree
°
percent
2.3 Mass Units
Mass
Mass-Dimension
Mass-Unit
mass-dimension
kilogram
gram
pound-mass
ounce-mass
ton
atomic-mass-unit
planck-mass
2.4 Length Units
Position
Length
Position-Vector
Length-Real-Measure
Length-Measure
Length-Dimension
Length-Unit
length-dimension
meter
centimeter
millimeter
kilometer
decimeter
foot
inch
yard
mile
astronomical-unit
angstrom
light-year
nautical-mile
planck-length
2.5 Time Units
Time
Time-Dimension
Time-Unit
time-dimension
second
minute
hour
day
week
average-year
common-year
leap-year
average-month
average-decade
century
millisecond
microsecond
nanosecond
planck-time
2.6 Charge Units
Charge
Charge-Dimension
Charge-Unit
charge-dimension
coulomb
elementary-charge-unit
planck-charge
2.7 Absolute-Temperature Units
Absolute-Temperature
Temperature-Dimension
Absolute-Temperature-Unit
temperature-dimension
kelvin
rankine
planck-temperature
2.8 Area Units
Area
Area-Dimension
Area-Unit
area-dimension
square-meter
square-centimeter
square-foot
square-inch
square-mile
acre
2.9 Volume Units
Volume
Volume-Dimension
Volume-Unit
volume-dimension
cubic-meter
cubic-centimeter
liter
milliliter
cubic-foot
cubic-inch
gallon
quart
pint
cup
fluid-ounce
tablespoon
teaspoon
2.10 Density Units
Mass-Density
Mass-Density-Dimension
Mass-Density-Unit
mass-density-dimension
Charge-Density
Charge-Density-Dimension
Charge-Density-Unit
charge-density-dimension
2.11 Velocity and Speed Units
Velocity
Speed
Velocity-Vector
Velocity-Dimension
Speed-Dimension
Velocity-Unit
Speed-Unit
velocity-dimension
speed-dimension
meter-per-second
mile-per-hour
foot-per-second
knot
speed-of-light-unit
planck-velocity
2.12 Acceleration Units
Acceleration
Acceleration-Vector
Acceleration-Dimension
Acceleration-Unit
acceleration-dimension
meter-per-second-squared
gravitational-acceleration-unit
2.13 Force Units
Force
Force-Vector
Force-Dimension
Force-Unit
force-dimension
newton
pound-force
2.14 Momentum
Momentum
Momentum-Vector
Momentum-Dimension
Momentum-Unit
momentum-dimension
2.15 Energy, Work, and Torque Units
Energy
Work
Torque
Torque-Vector
Energy-Dimension
Work-Dimension
Torque-Dimension
Energy-Unit
Work-Unit
Torque-Unit
energy-dimension
work-dimension
torque-dimension
joule
newton-meter
calorie
foot-pound
british-thermal-unit
kilowatt-hour
electron-volt
2.16 Power Units
Power
Power-Dimension
Power-Unit
power-dimension
watt
kilowatt
horsepower
2.17 Pressure Units
Pressure
Pressure-Dimension
Pressure-Unit
pressure-dimension
pascal
pound-per-square-inch
atmosphere
bar
millibar
torr
millimeter-of-mercury
2.18 Entropy, Heat Capacity, and Specific Heat
Entropy
Heat-Capacity
Specific-Heat
Molar-Specific-Heat
Entropy-Dimension
Heat-Capacity-Dimension
Specific-Heat-Dimension
Molar-Specific-Heat-Dimension
Entropy-Unit
Heat-Capacity-Unit
Specific-Heat-Unit
Molar-Specific-Heat-Unit
entropy-dimension
heat-capacity-dimension
specific-heat-dimension
molar-specific-heat-dimension
2.19 Electric Field
Electric-Field
Electric-Field-Vector
Electric-Field-Dimension
Electric-Field-Unit
electric-field-dimension
2.20 Voltage, Emf, and Electric Potential Units
Voltage
Voltage-Dimension
Voltage-Unit
voltage-dimension
volt
2.21 Capacitance Units
Capacitance
Capacitance-Dimension
Capacitance-Unit
capacitance-dimension
farad
2.22 Current and Current-Density Units
Current
Current-Dimension
Current-Unit
current-dimension
ampere
Current-Density
Current-Density-Vector
Current-Density-Dimension
Current-Density-Unit
current-density-dimension
2.23 Resistance, Resistivity, and Conductivity Units
Resistance
Resistance-Dimension
Resistance-Unit
resistance-dimension
ohm
Resistivity
Resistivity-Dimension
Resistivity-Unit
resistivity-dimension
ohm-meter
Conductivity
Conductivity-Dimension
Conductivity-Unit
conductivity-dimension
2.24 Magnetic Field Units
Magnetic-Field
Magnetic-Field-Vector
Magnetic-Field-Dimension
Magnetic-Field-Unit
magnetic-field-dimension
tesla
gauss
2.25 Inductance Units
Inductance
Inductance-Dimension
Inductance-Unit
inductance-dimension
henry
7.1

2 Units and Dimensions

2.1 SI prefixes

procedure

(deci u)  Unit

  u : Unitish

procedure

(centi u)  Unit

  u : Unitish

procedure

(milli u)  Unit

  u : Unitish

procedure

(micro u)  Unit

  u : Unitish

procedure

(nano u)  Unit

  u : Unitish

procedure

(pico u)  Unit

  u : Unitish

procedure

(femto u)  Unit

  u : Unitish

procedure

(atto u)  Unit

  u : Unitish

procedure

(zepto u)  Unit

  u : Unitish

procedure

(yocto u)  Unit

  u : Unitish

procedure

(deca u)  Unit

  u : Unitish

procedure

(hecto u)  Unit

  u : Unitish

procedure

(kilo u)  Unit

  u : Unitish

procedure

(mega u)  Unit

  u : Unitish

procedure

(giga u)  Unit

  u : Unitish

procedure

(tera u)  Unit

  u : Unitish

procedure

(peta u)  Unit

  u : Unitish

procedure

(exa u)  Unit

  u : Unitish

procedure

(zetta u)  Unit

  u : Unitish

procedure

(yotta u)  Unit

  u : Unitish
functions for the SI prefixes.

2.2 Dimensionless Units

type

Dimensionless

type

Dimensionless-Number

type

Dimensionless-Vector

type

Zero-Measure

type

Dimensionless-Dimension

type

Dimensionless-Unit

value

dimensionless-dimension : Dimensionless-Dimension

value

1-unit : Dimensionless-Unit

value

thing : Dimensionless-Unit

value

mol : Dimensionless-Unit

value

radian : Dimensionless-Unit

value

turn : Dimensionless-Unit

value

revolution : Dimensionless-Unit

value

cycle : Dimensionless-Unit

value

degree : Dimensionless-Unit

value

° : Dimensionless-Unit

value

percent : Dimensionless-Unit

2.3 Mass Units

type

Mass

type

Mass-Dimension

type

Mass-Unit

value

mass-dimension : Mass-Dimension

value

kilogram : Mass-Unit

value

gram : Mass-Unit

value

pound-mass : Mass-Unit

value

ounce-mass : Mass-Unit

value

ton : Mass-Unit

value

atomic-mass-unit : Mass-Unit

value

planck-mass : Mass-Unit

2.4 Length Units

type

Position

type

Length

type

Position-Vector

type

Length-Real-Measure

type

Length-Measure

type

Length-Dimension

type

Length-Unit

value

length-dimension : Length-Dimension

value

meter : Length-Unit

value

centimeter : Length-Unit

value

millimeter : Length-Unit

value

kilometer : Length-Unit

value

decimeter : Length-Unit

value

foot : Length-Unit

value

inch : Length-Unit

value

yard : Length-Unit

value

mile : Length-Unit

value

astronomical-unit : Length-Unit

value

angstrom : Length-Unit

value

light-year : Length-Unit

value

nautical-mile : Length-Unit

value

planck-length : Length-Unit

2.5 Time Units

type

Time

type

Time-Dimension

type

Time-Unit

value

time-dimension : Time-Dimension

value

second : Time-Unit

value

minute : Time-Unit

value

hour : Time-Unit

value

day : Time-Unit

value

week : Time-Unit

value

average-year : Time-Unit

value

common-year : Time-Unit

value

leap-year : Time-Unit

value

average-month : Time-Unit

value

average-decade : Time-Unit

value

century : Time-Unit

value

millisecond : Time-Unit

value

microsecond : Time-Unit

value

nanosecond : Time-Unit

value

planck-time : Time-Unit

2.6 Charge Units

type

Charge

type

Charge-Dimension

type

Charge-Unit

value

charge-dimension : Charge-Dimension

value

coulomb : Charge-Unit

value

elementary-charge-unit : Charge-Unit

value

planck-charge : Charge-Unit

2.7 Absolute-Temperature Units

type

Absolute-Temperature

type

Temperature-Dimension

type

Absolute-Temperature-Unit

value

temperature-dimension : Temperature-Dimension

value

kelvin : Absolute-Temperature-Unit

value

rankine : Absolute-Temperature-Unit

value

planck-temperature : Absolute-Temperature-Unit

2.8 Area Units

type

Area

type

Area-Dimension

type

Area-Unit

value

area-dimension : Area-Dimension

value

square-meter : Area-Unit

value

square-centimeter : Area-Unit

value

square-foot : Area-Unit

value

square-inch : Area-Unit

value

square-mile : Area-Unit

value

acre : Area-Unit

2.9 Volume Units

type

Volume

type

Volume-Dimension

type

Volume-Unit

value

volume-dimension : Volume-Dimension

value

cubic-meter : Volume-Unit

value

cubic-centimeter : Volume-Unit

value

liter : Volume-Unit

value

milliliter : Volume-Unit

value

cubic-foot : Volume-Unit

value

cubic-inch : Volume-Unit

value

gallon : Volume-Unit

value

quart : Volume-Unit

value

pint : Volume-Unit

value

cup : Volume-Unit

value

fluid-ounce : Volume-Unit

value

tablespoon : Volume-Unit

value

teaspoon : Volume-Unit

2.10 Density Units

type

Mass-Density

type

Mass-Density-Dimension

type

Mass-Density-Unit

value

mass-density-dimension : Mass-Density-Dimension

type

Charge-Density

type

Charge-Density-Dimension

type

Charge-Density-Unit

value

charge-density-dimension : Charge-Density-Dimension

2.11 Velocity and Speed Units

type

Velocity

type

Speed

type

Velocity-Vector

type

Velocity-Dimension

type

Speed-Dimension

type

Velocity-Unit

type

Speed-Unit

value

velocity-dimension : Velocity-Dimension

value

speed-dimension : Speed-Dimension

value

meter-per-second : Velocity-Unit

value

mile-per-hour : Velocity-Unit

value

foot-per-second : Velocity-Unit

value

knot : Velocity-Unit

value

speed-of-light-unit : Velocity-Unit

value

planck-velocity : Velocity-Unit

2.12 Acceleration Units

type

Acceleration

type

Acceleration-Vector

type

Acceleration-Dimension

type

Acceleration-Unit

value

acceleration-dimension : Acceleration-Dimension

value

meter-per-second-squared : Acceleration-Unit

value

gravitational-acceleration-unit : Acceleration-Unit

2.13 Force Units

type

Force

type

Force-Vector

type

Force-Dimension

type

Force-Unit

value

force-dimension : Force-Dimension

value

newton : Force-Unit

value

pound-force : Force-Unit

2.14 Momentum

type

Momentum

type

Momentum-Vector

type

Momentum-Dimension

type

Momentum-Unit

value

momentum-dimension : Momentum-Dimension

2.15 Energy, Work, and Torque Units

type

Energy

type

Work

type

Torque

type

Torque-Vector

type

Energy-Dimension

type

Work-Dimension

type

Torque-Dimension

type

Energy-Unit

type

Work-Unit

type

Torque-Unit

value

energy-dimension : Energy-Dimension

value

work-dimension : Work-Dimension

value

torque-dimension : Torque-Dimension

value

joule : Energy-Unit

value

newton-meter : Work-Unit

value

calorie : Energy-Unit

value

foot-pound : Work-Unit

value

british-thermal-unit : Energy-Unit

value

kilowatt-hour : Energy-Unit

value

electron-volt : Energy-Unit

2.16 Power Units

type

Power

type

Power-Dimension

type

Power-Unit

value

power-dimension : Power-Dimension

value

watt : Power-Unit

value

kilowatt : Power-Unit

value

horsepower : Power-Unit

2.17 Pressure Units

type

Pressure

type

Pressure-Dimension

type

Pressure-Unit

value

pressure-dimension : Pressure-Dimension

value

pascal : Pressure-Unit

value

pound-per-square-inch : Pressure-Unit

value

atmosphere : Pressure-Unit

value

bar : Pressure-Unit

value

millibar : Pressure-Unit

value

torr : Pressure-Unit

value

millimeter-of-mercury : Pressure-Unit

2.18 Entropy, Heat Capacity, and Specific Heat

type

Entropy

type

Heat-Capacity

type

Specific-Heat

type

Molar-Specific-Heat

type

Entropy-Dimension

type

Heat-Capacity-Dimension

type

Specific-Heat-Dimension

type

Molar-Specific-Heat-Dimension

type

Entropy-Unit

type

Heat-Capacity-Unit

type

Specific-Heat-Unit

type

Molar-Specific-Heat-Unit

value

entropy-dimension : Entropy-Dimension

value

heat-capacity-dimension : Heat-Capacity-Dimension

value

specific-heat-dimension : Specific-Heat-Dimension

value

molar-specific-heat-dimension : Molar-Specific-Heat-Dimension

2.19 Electric Field

type

Electric-Field

type

Electric-Field-Vector

type

Electric-Field-Dimension

type

Electric-Field-Unit

value

electric-field-dimension : Electric-Field-Dimension

2.20 Voltage, Emf, and Electric Potential Units

type

Voltage

type

Voltage-Dimension

type

Voltage-Unit

value

voltage-dimension : Voltage-Dimension

value

volt : Voltage-Unit

2.21 Capacitance Units

type

Capacitance

type

Capacitance-Dimension

type

Capacitance-Unit

value

capacitance-dimension : Capacitance-Dimension

value

farad : Capacitance-Unit

2.22 Current and Current-Density Units

type

Current

type

Current-Dimension

type

Current-Unit

value

current-dimension : Current-Dimension

value

ampere : Current-Unit

type

Current-Density

type

Current-Density-Vector

type

Current-Density-Dimension

type

Current-Density-Unit

value

current-density-dimension : Current-Density-Dimension

2.23 Resistance, Resistivity, and Conductivity Units

type

Resistance

type

Resistance-Dimension

type

Resistance-Unit

value

resistance-dimension : Resistance-Dimension

value

ohm : Resistance-Unit

type

Resistivity

type

Resistivity-Dimension

type

Resistivity-Unit

value

resistivity-dimension : Resistivity-Dimension

value

ohm-meter : Resistivity-Unit

type

Conductivity

type

Conductivity-Dimension

type

Conductivity-Unit

value

conductivity-dimension : Conductivity-Dimension

2.24 Magnetic Field Units

type

Magnetic-Field

type

Magnetic-Field-Vector

type

Magnetic-Field-Dimension

type

Magnetic-Field-Unit

value

magnetic-field-dimension : Magnetic-Field-Dimension

value

tesla : Magnetic-Field-Unit

value

gauss : Magnetic-Field-Unit

2.25 Inductance Units

type

Inductance

type

Inductance-Dimension

type

Inductance-Unit

value

inductance-dimension : Inductance-Dimension

value

henry : Inductance-Unit