The watt (symbol: W) is a derived unit of power in the International System of Units (SI) defined as 1 joule per second and can be used to quantify the rate of energy transfer. Power has dimensions of ML2T-3.
| watt | microwatt | imperial ton of refrigeration | femtowatt | gigawatt | nanowatt | petawatt | picowatt |
|---|---|---|---|---|---|---|---|
| 1 | 1 000 000 | 0.0002539 | 1.0 × 1015 | 1.0 × 10-9 | 1 000 000 000 | 1.0 × 10-15 | 1 000 000 000 000 |
| 1.0 × 10-6 | 1 | 2.5387959760084 × 10-10 | 1 000 000 000 | 1.0 × 10-15 | 1 000 | 1.0 × 10-21 | 1 000 000 |
| 3,938.875 | 3 938 875 000 | 1 | 3.938875 × 1018 | 3.938875 × 10-6 | 3 938 875 000 000 | 3.938875 × 10-12 | 3.938875 × 1015 |
| 1.0 × 10-15 | 1.0 × 10-9 | 2.5387959760084 × 10-19 | 1 | 1.0 × 10-24 | 1.0 × 10-6 | 1.0 × 10-30 | 0.001 |
| 1 000 000 000 | 1.0 × 1015 | 253,879.5976008 | 1.0 × 1024 | 1 | 1.0 × 1018 | 1.0 × 10-6 | 1.0 × 1021 |
| 1.0 × 10-9 | 0.001 | 2.5387959760084 × 10-13 | 1 000 000 | 1.0 × 10-18 | 1 | 1.0 × 10-24 | 1 000 |
| 1.0 × 1015 | 1.0 × 1021 | 253,879,597,600.84 | 1.0 × 1030 | 1 000 000 | 1.0 × 1024 | 1 | 1.0 × 1027 |
| 1.0 × 10-12 | 1.0 × 10-6 | 2.5387959760084 × 10-16 | 1 000 | 1.0 × 10-21 | 0.001 | 1.0 × 10-27 | 1 |
| 1 watts = 1 watts |
| 2 watts = 2 watts |
| 3 watts = 3 watts |
| 4 watts = 4 watts |
| 5 watts = 5 watts |