| Physical Quantity | Name | Symbol | Expressed in SI Base Units |
|---|---|---|---|
| temperature | degree Celsius | °C | K; an interval of 1°C = an interval of 1 K; 0°C = 273.15 K |
| volume | litre | l, l, or L | 10-3 m3 (1 dm3) |
| mass | tonne | t | 103 kg |
| area | hectare | ha | 104 m2 |
| time | minute | min | 60 s |
| time | hour | h | 3600 s |
| time | day | d | 86 400 s |
| time | calendar year | a | 365.25 d; 31 557 600 s |
| arc | degree of arc | ° | Π/180 rad |
| arc | minute of arc | ' | Π/10 800 rad |
| arc | second of arc | " | Π/648 800 rad |
