| Quantity | Unit | Symbol |
|---|---|---|
| Fundamental Units: | ||
| 1. Length | meter | m |
| 2. Mass | kilogram | kg |
| 3. Time | second | s |
| 4. Electric current | Ampere | A |
| 5. Temperature | Kelvin | K |
| 6. Luminous Intensity | candela | cd |
| 7. Amount of Substance | mole | mol |
| Supplementary Units: | ||
| 1. Plane Angle | radian | rad |
| 2. Solid Angle | steradian | sr |
| Note : Only Ampere and Kelvin start with capital letters as they are named after scientists. | ||