NiftyRecipe Online energy conversion
kWh/MJ 3.6 kWh/kcal 860.42065 kJ/MJ 0.001 kcal/cal 1000 BTU/cal 252.164401 kWh/BTU 3412.141633
BTU / J

1000 BTUs in joule

1055055.85262 joule

1 BTU = 1055.055853 J · factor

Reverse: 1 joule ≈ 0.000948 BTU. Use the reference table for common values.

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 12 BTUs in joule 15 BTUs in joule

Same amount, other units

1000 BTUs → kcal 1000 BTUs → cal 1000 BTUs → kJ 1000 BTUs → kWh 1000 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
1000 BTUs in joule

NiftyRecipe converts 1000 BTUs to 1055055.85262 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 1055055.85262 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.