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Convert horsepower to kilowatts
Instant, accurate hp → kW conversion with a live converter, table and formula.
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1 horsepower = 0.7457 kilowatts
1 kilowatt = 1.34102 horsepower
horsepower to kilowatts table
| horsepower (hp) | kilowatts (kW) |
|---|---|
| 0.5 | 0.37285 |
| 1 | 0.7457 |
| 2 | 1.4914 |
| 5 | 3.7285 |
| 10 | 7.457 |
| 20 | 14.914 |
| 50 | 37.285 |
| 100 | 74.57 |
| 500 | 372.85 |
| 1000 | 745.7 |
Formula
kilowatts = horsepower × 0.7457.
Example
10 horsepower = 7.457 kilowatts.
What is a horsepower?
Horsepower (hp) is about 746 watts, used for engines.
What is a kilowatt?
A kilowatt (kW) is 1,000 watts.
Real-world reference points
An LED bulb draws ~9 W; a kettle ~2,000 W; a small car engine ~100 hp (~75 kW).
| Reference | horsepower | kilowatts |
|---|---|---|
| LED bulb | 0.0121 hp | 0.009 kW |
| Laptop charging | 0.0872 hp | 0.065 kW |
| Microwave | 1.21 hp | 0.9 kW |
| Electric kettle | 2.68 hp | 2 kW |
| Small car engine (100 hp) | 100 hp | 74.57 kW |
Mistakes to avoid with power conversions
- kW vs kWh again: power is the rate, energy is the amount — a 2 kW kettle for 6 minutes uses 0.2 kWh.
- Mixing metric and mechanical horsepower (~1.4% apart) when comparing engine specs across regions.
- Sizing inverters/generators on running watts while ignoring appliance startup surges.
Frequently asked questions
How many kilowatts in a horsepower?+
1 horsepower = 0.7457 kilowatts.
How do I convert horsepower to kilowatts?+
Enter the value in the horsepower box above and the kilowatts value appears instantly. You can also type in the kilowatts box to convert the other way.
Is this hp to kW converter free?+
Yes — it is 100% free, needs no sign-up, and runs entirely in your browser.