hp to watts Converter
1 hp = 745.7 W. Enter a value. The result updates immediately.
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
- Enter the value in hp.
- Select hp as the source unit.
- Select watts as the target unit.
- Read or copy the result.
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 and BTU/h uses the International Table BTU.
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 and BTU/h uses the International Table BTU. ConverterBase uses stable definitions and fixed conversion factors, not live or rounded market data.