Joules to British thermal units Converter

Convert joules (J) to british thermal units (BTU) instantly. Energy conversions link food labels in kJ and kcal, SP Group bills in kWh and air-conditioner capacity in BTU.

Result

British thermal units
0.000948 BTU

How to use the joules to british thermal units converter

  1. Enter the joules (J).
  2. The results update as you type, or press Calculate.
  3. Read the british thermal units first, then the supporting figures below it.

Formula

British thermal units = joules × 0.0009478171

Worked example

For example, with these inputs:

the calculator returns:

Joules to British thermal units table

JoulesBritish thermal units
1 J0.000948 BTU
2 J0.001896 BTU
5 J0.004739 BTU
10 J0.009478 BTU
20 J0.018956 BTU
25 J0.023695 BTU
50 J0.047391 BTU
100 J0.094782 BTU
250 J0.236954 BTU
500 J0.473909 BTU
1,000 J0.947817 BTU

About this conversion

Energy conversions link food labels in kJ and kcal, SP Group bills in kWh and air-conditioner capacity in BTU.

Many conversion factors are exact by definition. The inch has been defined as exactly 2.54 centimetres since 1959, and the pound as exactly 0.45359237 kilograms, so conversions involving them can be as precise as you need.

Writing the units next to every number while you work is the simplest way to avoid mistakes. If the units do not cancel to leave the one you want, the calculation is set up wrongly.

Frequently asked questions

How many british thermal units are in one joule?

1 J = 0.000948 BTU.

How do I convert J to BTU?

British thermal units = joules × 0.0009478171.

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