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British thermal units to joules Converter
Enter the British thermal units, then press Calculate. The joules stay hidden while you type.
Press Calculate after the entries are in.
What this energy conversion is for
Use this page when a measurement is written in British thermal units and the next step needs joules. The number stays blank until you press Calculate, so a half-typed entry is never mistaken for the answer.
The factor
Multiply by the factor: 1 British thermal unit = 1,055.05585262 joules.
A worked example
10 British thermal units are 10,550.5585262 joules. Multiply the result by the reverse factor if you want the original number back.
How to check it
Write the factor down, do the multiply on paper, and compare it with the result card. If you change a sentence on this page, edit the HTML file and reload. The form and this note live in the same file.
The reverse conversion is joules to British thermal units. A nearby pair in the same units is British thermal units to kilojoules.