A

Acceleration

meters per second squared

m/s²

Angular Acceleration

radians per second squared

rad/s²

Angular Momentum

joule second

Js

Angular Velocity

radians per second

rad/s

revolutions per minute

rpm

Apparent Energy

volt ampere hour

VAh

kilovolt ampere hour

kVAh

megavolt ampere hour

MVAh

Apparent Power

volt ampere

VA

kilovolt ampere

kVA

megavolt ampere

mVA

Area

square meter

m²

square millimeter

mm²

square centimeter

cm²

square kilometer

km²

square inch

in²

square foot

ft²

square yard

yd²

square mile

mile²

acre

acre²

C

Capacitance

farad

F

Cooling Efficiency

coefficient of performance

COP

kilowatt per ton

kW/ton

energy efficiency ratio

Btu/Wh

D

Density

kilograms per cubic meter

kg/m³

micrograms per cubic meter

µg/m³

Dimensionless

pixel

px

decibel

db

power factor

pf

pH

percent relative humidity

%RH

grams of water per kilogram dry air

gH₂O/kgAir

volts per degree kelvin

V/K

degree days celsius

°daysC

degree days fahrenheit

°daysF

percent obscuration per foot

%obsc/ft

percent obscuration per meter

%obsc/m

psi per degree fahrenheit

psi/°F

square meters per newton

m²/N

watts per square meter degree kelvin

W/m²K

db milliVolt

dBmV

db microVolt

dBµV

parts per unit

ppu

parts per million

ppm

parts per billion

ppb

grams per kilogram

g/kg

radian

rad

degrees angular

deg

degrees phase

degPh

steradian

sr

nephelometric turbidity units

ntu

formazin nephelometric unit

fnu

power usage effectiveness

PUE

data center infrastructure efficiency

DCIE

percentage

%

unitless

E

Electric Charge

coulomb

C

ampere hour

Ah

Electric Conductance

siemens

S

Electric Current

ampere

A

milliampere

mA

Electric Current Density

amperes per square meter

A/m²

Electric Field Strength

volts per meter

V/m

Electric Potential

Volt

V

milliVolt

mV

kiloVolt

kV

megaVolt

MV

Electric Resistance

ohm

Ω

kilohm

kΩ

megohm

MΩ

milliohm

mΩ

Electrical Conductivity

siemens per meter

S/m

Electrical Resistivity

ohm meter

Ωm

Electromagnetic Moment

ampere square meter

Am²

Energy

kilobtu

kBTU

megabtu

MBTU

joule

J

kilojoule

kJ

watt hour

Wh

kilowatt hour

kWh

megawatt hour

MWh

btu

BTU

horsepower hour

hph

calorie

cal

therm

therm

tons refrigeration hour

tonrefh

megajoule

MJ

gigajoule

GJ

newton meter

Nm

cubic meters natural gas

m³_gas

cubic feet natural gas

ft³_gas

hundred cubic feet natural gas

thousand cubic feet natural gas

million cubic feet natural gas

Energy by Area

joules per square meter

J/m²

watt hours per square meter

Wh/m²

watt hours per square foot

Wh/ft²

kilowatt hours per square meter

kWh/m²

kilowatt hours per square foot

kWh/ft²

megawatt hours per square meter

MWh/m²

megawatt hours per square foot

MWh/ft²

megajoules per square meter

MJ/m²

megajoules per square foot

MJ/ft²

kilobtu per square foot

kBTU/ft²

megabtu per square foot

MBTU/ft²

Enthalpy

joules per gram

J/g

joules per kilogram

J/kg

joules per kilogram dry air

J/kg_dry

btu per pound

BTU/lb

btus per pound dry air

btu/lb_dry

kilojoules per kilogram

kJ/kg

kilojoules per kilogram dry air

kJ/kg_dry

megajoules per kilogram dry air

MJ/kg_dry

calorie per gram

cal/g

Entropy

joules per degree kelvin

J/°K

kilojoules per degree kelvin

kJ/°K

megajoules per degree kelvin

MJ/°K

F

Force

newton

N

pound force

lbf

Frequency

hertz

Hz

kilohertz

kHz

cycles per hour

cph

cycles per minute

cpm

megahertz

MHz

per minute

/min

per second

/s

per hour

/h

percent per second

%/s

air changes per hour

ACH

G

Grammage

kilograms per square meter

kg/m²

grams per square meter

g/m²

H

Heating Rate

degrees kelvin per second

K/s

degrees celsius per hour

°C/h

degrees celsius per minute

°C/min

degrees fahrenheit per hour

°F/h

degrees fahrenheit per minute

°F/min

degrees kelvin per hour

K/h

degrees kelvin per minute

K/min

I

Illuminance

lux

lx

footcandle

fc

phot

ph

Inductance

henry

H

Irradiance

watts per square meter irradiance

W/m²_irr

Irradiance

watts per square foot irradiance

W/ft²_irr

L

Length

meter

m

micrometer

µm

millimeter

mm

centimeter

cm

kilometer

km

inch

in

foot

ft

yard

yd

mile

mile²

Luminance

candelas per square meter

cd/m²

candels per square foot

cd/ft²

Luminous Flux

lumen

lm

Luminous Intensity

candela

cd

M

Magnetic Field Strength

amperes per meter

A/m

Magnetic Flux

weber

Wb

Magnetic Flux Density

tesla

T

Mass

kilogram

kg

milligram

mg

gram

g

ounce

oz

pound

lb

kilopound

klb

metric ton

ton

short ton

t

Mass Flow

kilograms per second

kg/s

kilograms per hour

kg/h

pounds per minute

lb/min

pounds per hour

lb/h

pounds per second

lb/s

kilopounds per hour

klb/h

grams per second

g/s

grams per minute

g/min

metric tons per hour

ton/h

kilograms per minute

kg/min

Momentum

newton second

Ns

P

Power

watt

W

milliwatt

mW

kilowatt

kW

megawatt

MW

gigawatt

GW

btus per hour

BTU/h

therms per hour

therm/h

horsepower

hp

foot pounds per second

ftlbs/sec

tons refrigeration

tonref

kilobtus per hour

kBTU/h

megabtus per hour

MBTU/h

joules per hour

J/h

kilojoules per hour

kJ/h

megajoules per hour

MJ/h

Power by Area

watts per square meter

W/m²

watts per square foot

W/ft²

kilowatts per square meter

kW/m²

kilowatts per square foot

kW/ft²

kilobtus per hour per square foot

kBTU/h/ft²

Power by Volumetric Flow

watts per cubic meters per second

W/m³/s

watts per cubic feet per minute

W/cfm

kilowatts per kilocubic feet per minute

kW/kcfm

kilowatts per gallons per minute

kW/gal/min

Pressure

pascal

Pa

kilopascal

kPa

bar

bar

atmosphere

atm

pounds per square inch

psi

centimeters of water

cmH₂O

inches of water

in/wc

millimeters of mercury

mmHg

centimeters of mercury

cmHg

inches of mercury

inHg

hectopascal

hPa

millibar

mbar

R

Reactive Energy

volt ampere reactive hour

VARh

kilovolt ampere reactive hour

kVARh

megavolt ampere reactive hour

MVARh

Reactive Power

volt ampere reactive

VAR

kilovolt ampere reactive

kVAR

megavolt ampere reactive

MVAR

S

Specific Entropy

joules per kilogram degree kelvin

J/kg°K

Surface Tension

newtons per meter

N/m

T

Temperature

celsius

°C

kelvin

K

fahrenheit

°F

Temperature Differential

fahrenheit degrees

Δ°F

celsius degrees

Δ°C

kelvin degrees

ΔK

Thermal Conductivity

watts per meter degree kelvin

W/m°K

Time

nanosecond

ns

microsecond

µs

millisecond

ms

hundredths second

cs

tenths second

ds

second

sec

minute

min

day

day

week

wk

julian month

mo

year

yr

hour

hr

total hours

hrs

V

Velocity

meters per second

m/s

kilometers per second

km/s

kilometers per hour

km/h

miles per hour

mph

feet per second

ft/s

feet per minute

ft/min

millimeters per second

mm/s

millimeters per minute

mm/min

meters per minute

m/min

meters per hour

m/h

knot

knot

Volume

cubic meter

m³

cubic millimeter

mm³

cubic centimeter

cm³

milliliter

mL

hectoliter

hL

liter

L

kiloliter

kL

cubic inch

in³

cubic foot

ft³

cubic yard

yd³

gallon

gal

kilogallon

kgal

quart

qt

pint

pt

fluid ounce

fl_oz

imperial gallon

galUK

hecto cubic foot

hft³

Volumetric Flow

cubic meters per second

m³/s

milliliters per second

mL/s

hectoliters per second

hL/s

liters per second

L/s

cubic feet per second

cfs

cubic feet per minute

cfm

cubic feet per hour

cfh

kilocubic feet per minute

kcfm

imperial gallons per minute

galUK/min

liters per minute

L/min

liters per hour

L/h

cubic meters per minute

m³/min

cubic meters per hour

m³/h

Gallons per minute

gal/min