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Convert horsepower (hp) to watts (W) and watts to horsepower instantly. Useful for comparing motor/engine specs, electrical systems, and power ratings across industries.
Last updated: April 8, 2026
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Horsepower
1 hp
Watts
745.699872 W
Kilowatts
0.74569987 kW
Quick facts
Formula
W = hp × 745.699872
Formula
hp = W ÷ 745.699872
Also shown
kW
Converting 1 horsepower:
Input
1 hp
Result
745.699872 W
Horsepower and watts both measure power. This converter uses mechanical horsepower, where 1 hp is exactly 745.699872 watts. To convert hp to watts, multiply by that factor; to convert watts to hp, divide by it.
watts = horsepower × 745.699872horsepower = watts ÷ 745.699872kilowatts = watts ÷ 1000Mechanical horsepower is common for engines and rotating equipment in many regions.
| Horsepower | Watts |
|---|---|
| 0.5 | 372.849936 |
| 1 | 745.699872 |
| 5 | 3728.49936 |
| 10 | 7456.99872 |
| 100 | 74569.9872 |
Need torque-power tools too? Try our torque to horsepower converter.
Get Custom Calculator for Your PlatformResult: 12 hp = 8,948.398464 W
Result: 5000 W ≈ 6.705 hp
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Suggested hashtags: #HorsepowerToWatts #PowerConverter #Engineering #Motors #Calculator