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Horsepower to Kilowatts Converter

Convert horsepower to kilowatts and back instantly with formula and common values.

hp

Kilowatts

3.9522

kW

5.3 hp = 3.9522 kW

kW = hp × 0.7457

Horsepower to Kilowatts: 1 hp equals 0.7457 kW. To convert horsepower to kilowatts, multiply by 0.7457 (kW = hp × 0.7457). For example, 10 hp = 7.457 kW.

How to Convert Horsepower to Kilowatts

To convert from horsepower to kilowatts, multiply the value by 0.7457. The conversion is linear, meaning doubling the input doubles the output.

Conversion Formula

  • Horsepower to Kilowatts: kW = hp × 0.7457
  • Kilowatts to Horsepower: hp = kW ÷ 0.7457

Horsepower to Kilowatts Conversion Chart

Horsepower (hp)Kilowatts (kW)
0.10.07457
0.250.186425
0.50.37285
10.7457
21.4914
32.2371
53.7285
107.457
2014.914
2518.6425
5037.285
10074.57
250186.425
1000745.7

Understanding the Units

What is a Horsepower?

One mechanical horsepower equals exactly 745.6998715822702 watts; one metric horsepower equals exactly 735.49875 watts.

Defined by James Watt to compare steam engines to draft horses pulling weights.

Common contexts: automotive, small engines.

What is a Kilowatt?

A kilowatt equals 1,000 watts.

Common contexts: home appliances, small motors, EV charging.

Real-World Reference Points

Item Horsepower (hp) Kilowatts (kW)
Riding lawnmower1813.4226
Compact sedan150111.855
Sports car400298.28

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FAQ

How do I convert horsepower to kilowatts?

Multiply by 0.7457. For example, 5.3 hp × 0.7457 = 3.9522 kW.

What is the formula for horsepower to kilowatts?

The formula is: kW = hp × 0.7457.

How many kilowatts are in one horsepower?

One horsepower equals 0.7457 kilowatts.

How many kilowatts are in 1 horsepower?

1 hp equals 0.7457 kW.

How do you convert horsepower to kilowatts?

Multiply the horsepower value by 0.7457. Formula: kW = hp × 0.7457.

How many kilowatts are in 5 horsepower?

5 hp = 3.7285 kW.

How do you convert kilowatts back to horsepower?

Use the inverse formula: hp = kW ÷ 0.7457. For example, 1 kW = 1.341022 hp.

What is the difference between Horsepower and Kilowatt?

One mechanical horsepower equals exactly 745.6998715822702 watts; one metric horsepower equals exactly 735.49875 watts. A kilowatt equals 1,000 watts.