Horsepower to Kilowatts

Convert Horsepower to Kilowatt instantly. Quick and accurate power conversion for electrical, mechanical, and HVAC applications.

What is the hp → kW Converter?

This tool converts Horsepower (hp) to Kilowatt (kW) quickly and accurately. Whether you work with motors, appliances, HVAC systems, or engineering specs, it gives you instant, reliable results right in your browser.

Conversion factor: 1 hp = 0.7457 kW. Multiply any hp value by 0.7457 to get kW.

Understanding the Units

Horsepower (hp)

Mechanical horsepower used in the US and UK. Equal to 745.7 watts. Standard for rating vehicle engines and industrial motors.

Kilowatt (kW)

Standard metric unit equal to 1,000 watts. Used worldwide for rating electrical appliances, motors, and power consumption.

Common Applications

Automotive

Compare vehicle engine power ratings across regions and standards.

Industrial Motors

Convert motor specs for pumps, compressors, and machinery.

Electrical Sizing

Match motor horsepower to electrical and HVAC requirements.

How to Use

Converting hp to kW takes just a few seconds:

Enter the value

Type your Horsepower value into the first input field.

Read the result

The Kilowatt result appears instantly in the second field as you type.

Copy or swap

Use the copy button to grab the result, or the swap button (↔) to reverse the direction and convert kW back to hp.

Conversion Formula

Formula: kW = hp × 0.7457. To reverse: hp = kW × 1.341.

Worked Example

For example, 10 hp × 0.7457 = 7.46 kW.

Quick Reference Table

Common hp-to-kW conversions at a glance:

hp	kW
10 hp	7.46 kW
50 hp	37.28 kW
100 hp	74.57 kW
250 hp	186.42 kW
500 hp	372.85 kW
1000 hp	745.70 kW

Features

Instant Conversion

Results update as you type — no convert button needed. Calculations use precise factors for engineering-grade accuracy.

Bidirectional Input

Type in either field and the other updates automatically, so you can convert in whichever direction you need.

Copy Results

One click copies any value to your clipboard for documents, spreadsheets, or specifications.

Many Power Units

Switch the dropdowns to convert among Watts, Kilowatts, Megawatts, Horsepower, BTU/h, Tons of Refrigeration, and more.

Mobile Friendly

Works smoothly on desktop, tablet, and phone — convert power units anywhere.

100% Private

Every calculation runs locally in your browser. No data is stored or sent to any server.

Frequently Asked Questions

How do I convert hp to kW?

Multiply the hp value by 0.7457. For example, 1 hp = 0.7457 kW.

What is the formula for hp to kW?

The formula is kW = hp × 0.7457. To convert back, use hp = kW × 1.341.

What is Horsepower?

Mechanical horsepower used in the US and UK. Equal to 745.7 watts. Standard for rating vehicle engines and industrial motors.

What is Kilowatt?

Standard metric unit equal to 1,000 watts. Used worldwide for rating electrical appliances, motors, and power consumption.

Is this converter accurate?

Yes. It uses internationally recognized conversion factors with high precision, suitable for engineering, HVAC, and automotive work.

Can I convert other power units?

Yes. Use the dropdown menus to choose from many units including Watts, Kilowatts, Megawatts, Horsepower (hp/PS), BTU/h, Tons of Refrigeration, and more.