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Convert Joules to British Thermal Units

1 joule = 0.00094781712 british thermal units. Multiply the number of joules by 0.000947817120313.

Result
0.0009478171203

1 J = 0.0009478171203 BTU

Multiply the number of joules by 0.000947817120313.

Results are rounded for display. Double-check values for critical work.

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Joules to British Thermal Units table

JoulesBritish Thermal Units
1 J0.00094781712 BTU
2 J0.0018956342 BTU
3 J0.0028434514 BTU
4 J0.0037912685 BTU
5 J0.0047390856 BTU
10 J0.0094781712 BTU
20 J0.018956342 BTU
25 J0.023695428 BTU
50 J0.047390856 BTU
100 J0.094781712 BTU
500 J0.47390856 BTU
1000 J0.94781712 BTU

About these units

The joule (J) is an SI base or derived unit of energy & work.

The british thermal unit (BTU) is an imperial unit of energy & work, equal to 1,055.0559 joules.

Going the other way, 1 british thermal unit = 1,055.0559 joules. Diet calories, electricity bills in kilowatt-hours, boiler ratings in BTU and particle physics in electronvolts are all the same physical quantity. Convert energy across every scale from the atomic to the industrial.

Frequently asked

How many british thermal units are in a joule?
1 joule = 0.00094781712 british thermal units.
How do you convert joules to british thermal units?
Multiply the number of joules by 0.000947817120313.
What is 10 J in BTU?
10 J = 0.0094781712 BTU.

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