Btu (british thermal unit) to calories (cal) energy conversion table shows the most common values for the quick reference. Alternatively, you may use the converter below to convert any other values.
1 Btu = 252.164401 Calories
British thermal unit is the amount of energy required to heat one pound of water to 1 fahrenheit degree. It is abbreviated as 'Btu".
Calorie is a metric energy unit and defined as the amount of energy to heat 1 gram of water to 1 celsius degree. The abbreviation is "Cal".
For other energy unit conversions, please go to Energy Conversions