What does the Power Converter work out?

Convert watts, horsepower, kW and BTU per hour. It is one of the Unit Converters tools on Mondo Knows.

Do I need to sign up, and is my data stored?

No sign-up, and nothing you type is sent anywhere. The calculation runs in your own browser, so the figures stay on your device and the page works offline once loaded.

Mondo Knows Tools

Power Converter

Convert watts, horsepower, kW and BTU per hour. Use the free power converter below to get an instant answer, with the formula shown so you can check the maths and trust the result. Free, private, and no sign-up.

Value

Unit you have

Unit for the big answer

Mondo says

1 kW =

1.34102

Milliwatt (mW)1,000,000

Watt (W)1,000

Kilowatt (kW)1

Megawatt (MW)0.001

Mechanical horsepower (hp)1.34102

Metric horsepower (PS)1.35962

BTU per hour (BTU/h)3,412.14

Ton of refrigeration (TR)0.284345

Foot-pound per second (ft·lb/s)737.562

9 units. The bold row is the unit you picked for the big answer.

How it works

Car horsepower, kettle kilowatts, air conditioning in BTU per hour. Includes both the mechanical and metric horsepower, because they are not the same number and the difference matters at the top end of a spec sheet.

The formula

Every unit is defined by how many base units it is worth, so the conversion is value x factor(from) / factor(to).

Power Converter: common questions

What does the Power Converter work out?: Convert watts, horsepower, kW and BTU per hour. It is one of the Unit Converters tools on Mondo Knows.
How is the Power Converter calculated?: Car horsepower, kettle kilowatts, air conditioning in BTU per hour. Includes both the mechanical and metric horsepower, because they are not the same number and the difference matters at the top end of a spec sheet. The maths is short enough to check by hand: Every unit is defined by how many base units it is worth, so the conversion is value x factor(from) / factor(to).
Do I need to sign up, and is my data stored?: No sign-up, and nothing you type is sent anywhere. The calculation runs in your own browser, so the figures stay on your device and the page works offline once loaded.

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Estimates for general guidance only. This is not financial, medical or legal advice. Everything runs in your browser and nothing you type is stored.