There are seven fundamental unit .
| s.no. | Unit | physical quantity |
|---|---|---|
| 1. | Kilogram | Mass |
| 2. | Metre | Length |
| 3. | Second | Time |
| 4. | Kelvin | Temperature |
| 5. | Ampere | Electric current |
| 6. | Mole | Quantity of matter |
| 7. | Candela | Luminous intensity |
Supplementary unit
It is referred as a dimensionless unit which is employed with the fundamental units to create the derived units.
| s.no. | physical quantity | name of unit |
|---|---|---|
| 1. | Phase angle | Radiun |
| 2. | Solid angle | Steradian |
Derived unit
Derived units are those which depend on the fundamental unit. or which can be expressed in the terms of fundamental unit .
The unit that consists of the combination of the fundamental units are called derived units.