Convert 1 British Thermal Unit (It) to Calorie (International Table)
251.9957611111147 cal
1 BTU (IT) (British thermal unit (IT)) is equal to 251.9957611111147 cal (calorie (international table)). To convert from British thermal unit (IT) to calorie (international table), multiply by 251.99576111111466 or divide by 0.003968320719327741.