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Convert British thermal units to kilojoules

Convert British thermal units (BTU) to kilojoules (kJ). 1 BTU = 1.05506 kJ, and 1 kJ = 0.947817 BTU.

1,000 BTU = 1,055.06 kJ

BTU to kJ formula

kJ = BTU × 1.055055853

Multiply the number of British thermal units by 1.055055853.

Example: To convert 1,000 BTU to kilojoules: 1,000 × 1.055055853 = 1,055.06 kJ.

Quick answers

What is 1,000 BTU in kilojoules?
1,000 BTU = 1,055.06 kJ
What is 12,000 BTU in kilojoules?
12,000 BTU = 12,660.7 kJ

BTU to kJ conversion table

kJ to BTU table
British thermal units (BTU)kilojoules (kJ)
1 BTU1.05506 kJ
100 BTU105.506 kJ
1,000 BTU1,055.06 kJ
3,412 BTU3,599.85 kJ
5,000 BTU5,275.28 kJ
8,000 BTU8,440.45 kJ
10,000 BTU10,550.6 kJ
12,000 BTU12,660.7 kJ
18,000 BTU18,991 kJ
24,000 BTU25,321.3 kJ
36,000 BTU37,982 kJ
100,000 BTU105,506 kJ

Frequently asked questions

How many kilojoules are in a british thermal unit?

There are 1.05506 kilojoules in a british thermal unit (1 BTU = 1.05506 kJ).

How do I convert British thermal units to kilojoules?

Multiply the number of British thermal units by 1.055055853. To convert 1,000 BTU to kilojoules: 1,000 × 1.055055853 = 1,055.06 kJ.

Is the BTU to kJ conversion exact?

Yes. Both units are defined exactly, so 1 british thermal unit is exactly 1.05505585262 kilojoules. Results on this page are rounded to six significant digits; pick more decimals in the converter if you need them.

What is 1,000 BTU in kilojoules?

1,000 BTU = 1,055.06 kJ.

How do I convert kilojoules back to British thermal units?

Use the reverse relationship: 1 kJ = 0.947817 BTU. The kJ to BTU page has a converter and a full table.

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