horsepower to watts
Convert horsepower (mechanical) to watt — instant, free, with the formula shown.
1 hp=745.699872 W
How to convert horsepower (mechanical) to watt
To convert horsepower (mechanical) to watt, multiply by 745.69987158:
W = hp × 745.69987158
For example, 10 hp × 745.699872 = 7456.998716 W.
hp to W conversion table
| horsepower (hp) | watts (W) |
|---|---|
| 1 hp | 745.699872 W |
| 2 hp | 1491.399743 W |
| 5 hp | 3728.499358 W |
| 10 hp | 7456.998716 W |
| 25 hp | 18642.49679 W |
| 50 hp | 37284.993579 W |
| 100 hp | 74569.987158 W |
| 250 hp | 186424.967896 W |
| 500 hp | 372849.935791 W |
| 1000 hp | 745699.871582 W |
Other horsepower (mechanical) conversions
Convert to watt from another unit
hp to W — frequently asked
How many watts are in 1 horsepower (mechanical)?
1 horsepower (mechanical) = 745.699872 watts (hp × 745.699872 = W).
What is the formula to convert horsepower (mechanical) to watt?
Multiply your horsepower (mechanical) value by 745.69987158 to get watt.
How do I convert 10 horsepower to watts?
10 hp = 7456.998716 W. For 100 hp the answer is 74569.987158 W. Use the calculator on this page for any other value.
When to convert horsepower (mechanical) to watt
1Car engines (hp ↔ kW)
2Electrical appliances (W, kW)
3Air conditioning (BTU/h ↔ kW)
4Renewable energy (MW, GW)
Power conversion — common questions
How many watts in 1 horsepower?
Mechanical: 1 hp ≈ 745.7 W. Metric: 1 hp (PS) ≈ 735.5 W. The mechanical definition is standard in the US/UK; metric is used in continental Europe.
How do I convert AC BTU/h to kW?
Divide BTU/h by 3,412 (or multiply by 0.000293). A 12,000 BTU/h AC ≈ 3.52 kW of cooling power.
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