BTU to Joules Converter
1 BTU (British Thermal Unit) = 1,055.06 joules. BTU is used in HVAC, heating and cooling ratings.
Formula:1 BTU = 1,055.06 J
⇄ Switch to Joules To BTUBTU to Joule — common values
1 BTU1,055.06 J
100 BTU105,506 J
1,000 BTU1,055,060 J
3,600 BTU3,798,216 J
10,000 BTU10,550,600 J
1,000,000 BTU1,055,060,000 J
3,600,000 BTU3,798,216,000 J
How to convert BTU To Joules
To convert btu to joules, 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 Joules To BTU” 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 BTU To Joules?
1 BTU = 1,055.06 J. 1 BTU (British Thermal Unit) = 1,055.06 joules. BTU is used in HVAC, heating and cooling ratings.
Is this converter free?
Yes — completely free, no registration required. Works instantly in your browser.
How do I convert Joules To BTU?
Use the Joules To BTU converter or click the ⇄ switch button above.
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