Joules to BTU Converter
1 BTU = 1,055.06 joules. BTU is used for HVAC system ratings and heating/cooling capacity.
Formula:1 BTU = 1,055.06 J
⇄ Switch to BTU To JoulesJoule to BTU — common values
1 J0.000947813 BTU
100 J0.0947813 BTU
1,000 J0.947813 BTU
3,600 J3.4121282 BTU
10,000 J9.4781339 BTU
1,000,000 J947.81339 BTU
3,600,000 J3,412.1282 BTU
How to convert Joules To BTU
To convert joules to btu, use the formula: 1 BTU = 1,055.06 J. Enter any value in the input field above and the result appears instantly. Click the ⇄ button or use the “Switch to BTU To Joules” link to reverse the conversion.
All conversions use precise mathematical constants validated against international SI standards (NIST and ISO 80000) and are accurate to 8 significant figures.
Frequently Asked Questions
What is the formula to convert Joules To BTU?
1 BTU = 1,055.06 J. 1 BTU = 1,055.06 joules. BTU is used for HVAC system ratings and heating/cooling capacity.
Is this converter free?
Yes — completely free, no registration required. Works instantly in your browser.
How do I convert BTU To Joules?
Use the BTU To Joules converter or click the ⇄ switch button above.
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