How many British Thermal Unit are in 1 Joule?

One joule equals 0.000948 british thermal unit.

Can I convert British Thermal Unit back to Joule?

Yes. Enter a value in either field to convert from Joule (J) to British Thermal Unit (BTU) or the reverse — results update instantly.

J → BTU

Convert between joules, calories, BTU, kWh, and more energy units. Perfect for physics, nutrition, and electricity calculations.

From

Enter a value above, select your units, and get instant results. Works both ways — Joule to British Thermal Unit or British Thermal Unit to Joule.

Formula: British Thermal Unit = Joule × 0.000948

Enter the value you want to convert in the "Joule" field.
Select "Joule" as your "From" unit.
Select "British Thermal Unit" as your "To" unit.
The converted result appears instantly in the "British Thermal Unit" field.
To reverse the conversion, enter a value in the "British Thermal Unit" field instead.

Multiply your joule value by 0.000948. For example, 10 J = 0.009478 BTU.

Check out our comprehensive guides on unit conversions, measurement systems, and conversion tips.

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