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How to convert British thermal unit to Kilocalorie
Conversion factor and calculation steps from British thermal unit (BTU) to Kilocalorie (kcal).
Open online converterConversion 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 kcal = 4184 J
1 BTU × 1055.05585262 = 1055.05585262 J
1055.05585262 J ÷ 4184 = 0.252164400722 kcal