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Horsepower to Kilowatt

hp
Kilowatt (kW)
kW

kW = hp × 0.745700

Quick Reference: Horsepower to Kilowatt

hpkW
10.7457
53.7285
107.457
2518.6425
5037.285
7555.9275
10074.57
150111.855
200149.14
250186.425
300223.71
400298.28
500372.85
750559.275
1,000745.7

How to Convert Horsepower to Kilowatt

Formula:

kW = hp × 0.745700

Example:

100 hp = 74.57 kW

  1. Enter the value in Horsepower you want to convert
  2. The result is calculated automatically
  3. Copy your result in Kilowatt or continue converting

About Horsepower and Kilowatt

Horsepower (hp) and kilowatts (kW) both measure engine power. One mechanical horsepower equals 0.7457 kW. The United States and United Kingdom rate engines in horsepower, while Europe, Japan, and most of the world officially use kilowatts. Many manufacturers now publish both figures.

Common Uses for This Conversion

Buying an imported or used car, reading Japanese or German car specifications, comparing electric vehicle power to combustion engines, and understanding motorcycle or industrial engine output.

💡Did You Know?

James Watt coined 'horsepower' in the 1780s to market his steam engines to mine operators. A 400 hp sports car delivers about 298 kW — enough to simultaneously power almost 3,000 household LED bulbs.

Frequently Asked Questions

100 horsepower = 74.57 kW. This corresponds to a typical compact family car engine. Multiply any hp value by 0.7457 to get kilowatts, or divide kW by 0.7457 to get hp.
The US and UK traditionally use horsepower (hp), while the EU adopted kilowatts (kW) as the official unit in 1992. German and French registration documents list kW. Most manufacturers publish both: a BMW might show '135 kW / 184 PS (≈ 181 US hp)'.
Metric horsepower — called PS in German, CV in French, Spanish, and Portuguese — equals 735.5 watts (0.7355 kW), slightly less than US mechanical horsepower (745.7 W). A German car rated '100 PS' produces 73.55 kW or about 98.6 US hp.
Electric car power is always in kW — a 200 kW EV equals about 268 hp. Because electric motors deliver full torque from zero rpm, 200 kW in an EV feels significantly stronger than 200 kW from a combustion engine that must rev to reach peak output.

Related Conversions

Watt → KilowattKilowatt → Metric Horsepower

Looking for more conversions?

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