How to convert British thermal unit to Joule

Conversion factor and calculation steps from British thermal unit (BTU) to Joule (J).

Conversion logic

Each unit is defined via the base unit (joule (J)). The value is first converted to the base unit, then to the selected unit.

1 BTU = 1055.05585262 J

1 BTU × 1055.05585262 = 1055.05585262 J