Tables showing the SI equivalents of metric units and some older units commonly used, such as Hore Power (HP) and Watt (W).
Units of Power Table
| Unit | SI equivalent | Inverse |
|---|---|---|
| 1 HP (horse power) | equals 745.7 W | 1 W = 1.341 x 10-3 HP |
The Royal Society (1975) Quantities, Units and Symbols, London, The Royal Society