Power
hp to watts Converter
1 hp = 745.7 W. Enter any value and the result updates instantly.
Convert
Accuracy and rounding
Useful for motors, appliances, engines, and electrical specifications.
Power units compare rates of work or energy transfer. They do not describe total energy used over time.
For appliance or motor comparisons, one or two decimals is usually enough. For sizing equipment, follow the spec tolerance.
How to convert hp to watts
- Type the hp value in the calculator.
- Keep hp selected as the from unit and watts selected as the to unit.
- Use the instant result, or copy it with the copy button.
hp to watts chart
| hp | watts |
|---|---|
| 1 hp | 745.7 W |
| 2 hp | 1,491.4 W |
| 5 hp | 3,728.5 W |
| 10 hp | 7,457 W |
| 25 hp | 18,642.5 W |
| 50 hp | 37,284.99 W |
| 100 hp | 74,569.99 W |
Formula
W = hp x 745.69987158227
Example: 1 hp = 745.7 W.
Source
Power units derived from the watt; mechanical horsepower is 745.699871582 W.
Common questions
How do I convert hp to watts?
Enter the hp value in the converter, or multiply by the factor shown in the formula. 1 hp = 745.7 W.
What should I watch out for?
Power conversions compare rates of work or energy transfer, not total energy used over time.
Where does this power conversion come from?
Power units derived from the watt; mechanical horsepower is 745.699871582 W. ConverterBase uses stable definitions and fixed conversion factors, not live or rounded market data.