| Tyyppi: | Perusyksikkö | Järjestys: |
|---|
| 1 Watti (W) = | 1 Watti (W) |
| 1 Kilowatti (kW) = | 1000 Wattia (W) |
| 1 Megawatti (MW) = | 1000000 Wattia (W) |
| 1 Gigawatti (GW) = | 1000000000 Wattia (W) |
| 1 Terawatti (TW) = | 10 * 1011 Wattia (W) |
| 1 Hevosvoima (hv) = | 745.7 Wattia (W) |