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Convert joules to British thermal units

Convert joules (J) to British thermal units (BTU). 1 J = 0.000947817 BTU, and 1 BTU = 1,055.06 J.

1 J = 0.000947817 BTU

Joules to BTU formula

BTU = J × 0.0009478171203

Multiply the number of joules by 0.0009478171203.

Example: To convert 1 J to British thermal units: 1 × 0.0009478171203 = 0.000947817 BTU.

Quick answers

What is 1 J in British thermal units?
1 J = 0.000947817 BTU
What is 1,000 J in British thermal units?
1,000 J = 0.947817 BTU

Joules to BTU conversion table

BTU to Joules table
joules (J)British thermal units (BTU)
1 J0.000947817 BTU
10 J0.00947817 BTU
100 J0.0947817 BTU
1,000 J0.947817 BTU
4,184 J3.96567 BTU
10,000 J9.47817 BTU
100,000 J94.7817 BTU
1,000,000 J947.817 BTU
3,600,000 J3,412.14 BTU

Frequently asked questions

How many joules are in a british thermal unit?

There are 1,055.06 joules in a british thermal unit (1 BTU = 1,055.06 J), so 1 J = 0.000947817 BTU.

How do I convert joules to British thermal units?

Multiply the number of joules by 0.0009478171203. To convert 1 J to British thermal units: 1 × 0.0009478171203 = 0.000947817 BTU.

Is the Joules to BTU conversion exact?

Yes. Both units are defined exactly, so 1 joule is exactly 0.000947817120313 British thermal units. Results on this page are rounded to six significant digits; pick more decimals in the converter if you need them.

What is 1 J in British thermal units?

1 J = 0.000947817 BTU.

How do I convert British thermal units back to joules?

Use the reverse relationship: 1 BTU = 1,055.06 J. The BTU to Joules page has a converter and a full table.

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