Base Unit
- Base units are units that are fundamental building blocks in a system of measurement. There are seven base units in the SI system.
| Basic quantity | Name | Symbol |
| Mass | kilogram | kg |
| Length | metre | m |
| Time | second | s |
| Electric current | ampere | A |
| Temperature | kelvin | K |
| Amount of substance | mole | mol |
| Luminous intensity | candela | cd |
The radian and steradian may also be treated as basic units.
See also: CGS Units, Derived Units, SI Units.
Subjects: Physics