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Unit converter

Energy Converter

Convert between joules, calories, kilocalories, kilowatt-hours, BTU, and electronvolts.

BTU to Kilojoules

1 BTU = 1.05506 Kilojoules
1.05506

About these units

BTU

The British thermal unit is the energy to raise 1 pound of water by 1 °F, about 1,055 joules. It's used for heating and air conditioning.

Kilojoules

The kilojoule equals 1,000 joules and is the metric unit for food energy in many countries and for mechanical work.

Conversion formula

To convert BTU to Kilojoule, multiply the value by 1.05506.

Quick reference

BTUKilojoules
11.05506
22.11012
55.2753
1010.5506
100105.506

Frequently asked questions

How many Kilojoules are in one BTU?
1 BTU = 1.05506 Kilojoules.
How many BTU are in one Kilojoule?
1 Kilojoule = 0.9478133945 BTU.

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