UnitConverter

BTU to Joules Converter

Formula:1 BTU = 1,055.06 J
⇄ Switch to Joules To BTU
BTU
BTU
Joule
J
BTU 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
Quick Answer1 BTU = 1,055.06 J

1 BTU = 1,055.06 J

1 BTU (British Thermal Unit) = 1,055.06 joules. BTU is used in HVAC, heating and cooling ratings.

How to convert BTU To Joules

1 BTU = 1,055.06 J.

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 to reverse the conversion direction.

All conversions use precise mathematical constants validated against international SI standards (NIST and ISO 80000), accurate to 8 significant figures.

Frequently Asked Questions

How many Joules are in one BTU?

1 BTU = 1,055.06 J. 1 BTU (British Thermal Unit) = 1,055.06 joules. BTU is used in HVAC, heating and cooling ratings.

What is the formula to convert BTU to Joule?

1 BTU = 1,055.06 J. Multiply the BTU value by the conversion factor to get Joule.

How do I convert Joules To BTU?

Use the Joules To BTU converter — formula: 1 BTU = 1,055.06 J. Click the ⇄ switch button above for the reverse conversion.

Is this BTU to Joule converter free?

Yes — completely free, no registration required. Works instantly in your browser using precise mathematical constants validated against SI standards.

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