Physics: Table of SI Units

Quantity

Unit

Symbol

Length

meter

m

Mass

kilogram

kg

Time

second

s

Electric current

ampere

A

Temperature

kelvin

K

Quantity of substance

mole

mol

Luminosity

candle

cd

Derived quantity

Name

Symbol

area

square meter

m²

volume

cubic meter

m³

speed, velocity

meter per second

m/s

acceleration

meter per second squared  

m/s²

wave number

reciprocal meter

m^-1

mass density

kilogram per cubic meter

kg/m³

specific volume

cubic meter per kilogram

m³/kg

current density

ampere per square meter

A/m²

magnetic field strength  

ampere per meter

A/m

amount-of-substance concentration

mole per cubic meter

mol/m³

luminance

candela per square meter

cd/m²

mass fraction

kilogram per kilogram, which may be represented by the number 1

kg/kg = 1