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Horsepower to Watts
Convert Horsepower to Watts instantly. Free, fast, and accurate.
745.7
What This Conversion Does
Converts mechanical horsepower to watts. One horsepower is about 745.7 watts.
How to Use This Converter
Type a value in Horsepower into the input field. The result in Watts appears instantly. Click the result to copy it.
Worked Example
A 5 hp motor: 5 × 745.7 = 3,728.5 W.
Quick Reference Table
| Horsepower | Watts |
|---|---|
| 1 | 745.7 |
| 5 | 3728.5 |
| 10 | 7457 |
| 100 | 74570 |
Common Uses
Comparing engine and motor ratings between imperial and metric specifications.
Precision & Rounding
The conversion factor is fixed, so accuracy depends only on the precision of your input value. Keep full precision during calculation and round the final result to match your input.
Common Mistakes to Avoid
Metric horsepower (PS, used in Europe) is slightly different — about 735.5 W — not 745.7 W.
Related Glossary Terms
Formula
Value in Horsepower → Multiply by 745.7 → Result in Watts
Example Conversions
| Horsepower | Watts |
|---|---|
| 1 | 745.7 |
| 5 | 3,728.5 |
| 10 | 7,457 |
| 100 | 74,570 |