Physical quantities and units

There are seven base quantities used in the International System of Units. The seven base quantities and their corresponding units are: 

• length (metre)

• mass (kilogram)

• time (second)

• electric current (ampere)

• thermodynamic temperature (kelvin)

• amount of substance (mole)

• luminous intensity (candela)

Supplementary units: It includes plane angle in radian and solid angle in steradian.