Use this free online calculator to convert Kilojoule to Btu instantly. This energy conversion tool provides accurate results for all your measurement needs.

Quick Reference

1 Kilojoule = 0.947817 Btu

1 Btu = 1.0551 Kilojoule

Kilojoule to Btu Conversion Formula

To convert Kilojoule to Btu, multiply by 0.947817.

Btu = Kilojoule × 0.947817

Kilojoule = Btu × 1.0551

To convert Btu back to Kilojoule, divide by 0.947817 (or multiply by 1.0551).

About These Units

About Kilojoule

The kilojoule is a unit of energy used to measure work, heat, or power in various scientific and engineering contexts.

About Btu

The Btu is a unit of heat energy defined as the amount of heat required to raise the temperature of one pound of water by one degree Fahrenheit. In America the British thermal unit is sometimes called the heat unit. In defining the Btu, it is necessary to specify the temperature of the water; thus there have been several definitions over the years. However, one Btu is equal to about 251.996 (small) calories, or 0.251 996 of the (kilo-)calories counted by dieters. Using the current definition of the calorie (the IT calorie), one Btu equals approximately 778.169 foot pounds, 1.055 056 kilojoules or 0.293 071 watt hour. The symbol BThU has also been used, especially in Britain.

Kilojoule to Btu Conversion Table

Kilojoule	Btu	Btu	Kilojoule
0.1	0.094782	0.1	0.105506
0.5	0.473909	0.5	0.527528
1	0.947817	1	1.0551
2	1.8956	2	2.1101
5	4.7391	5	5.2753
10	9.4782	10	10.5506
20	18.9563	20	21.1011
25	23.6954	25	26.3764
50	47.3909	50	52.7528
100	94.7817	100	105.5056
250	236.9543	250	263.7640
500	473.9085	500	527.5280
1000	947.8171	1000	1055.06

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