Joules to BTU

Convert joules (J) to btu (BTU) instantly — with formula and reference table.

Quick answer: 1 J = 0.000948 BTU. To convert joules to btu, multiply by J × 0.000948.

Converting joules to btu

This converter changes a value in joules (J) into btu (BTU). One joule equals 0.000948 BTU. One BTU equals 1,055.06 joules, so converting joules to BTU means dividing by 1,055.06. The conversion runs entirely in your browser — enter a value and the result updates instantly, in either direction.

Formula

BTU = J × 0.000948

Example

Convert 10 J to BTU: 10 × 0.000948 = 0.009478 BTU.

Joules to BTU conversion table

Popular joules to btu conversions

Quick answers for the J values people look up most often:

• 4 J = 0.0038 BTU
• 6 J = 0.0057 BTU
• 7 J = 0.0066 BTU
• 8 J = 0.0076 BTU
• 9 J = 0.0085 BTU
• 12 J = 0.0114 BTU
• 15 J = 0.0142 BTU
• 30 J = 0.0284 BTU
• 40 J = 0.0379 BTU
• 60 J = 0.0569 BTU
• 75 J = 0.0711 BTU
• 80 J = 0.0758 BTU
• 90 J = 0.0853 BTU
• 150 J = 0.1422 BTU
• 200 J = 0.1896 BTU
• 250 J = 0.237 BTU
• 500 J = 0.4739 BTU
• 1000 J = 0.9478 BTU

How to use this converter

1. Enter a value in the joules (J) field.
2. Read the converted value in btu (BTU) below.
3. Type into the BTU field instead to convert in reverse, or use the swap button.

Frequently asked questions

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