NiftyRecipe Online energy conversion
cal/kWh 0.000001 MJ/kWh 0.277778 kJ/kcal 0.239006 kJ/cal 239.005736 BTU/kJ 1.055056 kWh/kcal 860.42065
BTU / J

12 BTUs in joule

12660.670231 joule

1 BTU = 1055.055853 J · factor

12 BTUs equals 12660.670231 joule. Factor: 1 BTU = 1055.055853 joule.

Enter a value and click Calculate - opens the page with the new result

Common values

joule to BTU 1 BTU in joule 2 BTUs in joule 3 BTUs in joule 4 BTUs in joule 5 BTUs in joule 6 BTUs in joule 8 BTUs in joule 10 BTUs in joule 15 BTUs in joule 20 BTUs in joule

Same amount, other units

12 BTUs → kcal 12 BTUs → cal 12 BTUs → kJ 12 BTUs → kWh 12 BTUs → MJ

Related converters

BTU → kcal BTU → cal BTU → kJ BTU → kWh BTU → MJ
Formula: BTU to joule

J = BTU × 1055.055853 (1 BTU = 1055.055853 J)

Reference values: BTU → joule
BTU J
1 BTU 1055.055853 J
100 BTU 105505.585262 J
200 BTU 211011.170524 J
500 BTU 527527.92631 J
1000 BTU 1055055.85262 J
2000 BTU 2110111.70524 J

All amounts for this pair

FAQ for BTU → J
12 BTUs in joule

NiftyRecipe converts 12 BTUs to 12660.670231 joule with a fixed SI-linked factor.

Kilojoules and megajoules describe energy on a scientific scale. The ratio applied here is 1 BTU = 1055.055853 joule, so this amount is 12660.670231 joule. Reverse check: 1 joule ≈ 0.000948 BTU. That helps when a lab notebook or spreadsheet only lists one column.

Change the value in the calculator for homework, datasheets or rough process estimates. The wording stays technical on purpose so these pages read differently from food-label articles on the same site.