# Calorie to BTU Conversion

## Calorie to BTU Conversion - Convert Calorie to BTU (cal to BTU)

### You are currently converting Energy units from Calorie to BTU

1 Calorie (cal)

=

0.00397 BTU (BTU)

Calorie : The calorie is a pre-SI metric unit of energy. Its symbol is cal, and first defined as a unit of heat by Nicolas Clément in 1824. The calorie is commonly used in the field of chemistry, and in many countries it is commonly used as a unit of food energy. There are two defined for the calorie, gram calorie (approximately equals 4.2 joules) and kilogram calorie (approximately equals 4.2 kilojoules).

BTU : The British thermal unit is a traditional measure unit of energy, approximately equals 1055 joules. Its symbol is Btu, or sometimes BTU. The unit is most often used as a measure of power (symbol: Btu/h) in the power. Now, the British thermal unit is almost replaced by the SI unit of energy, the joule.

### Energy Conversion Calculator

1 Calorie (international) = 0.00397 BTU (international)

### FAQ about Calorie to BTU Conversion

1 calorie (cal) is equal to 0.00397 btu (BTU).

1cal = 0.00397BTU

The Energy E in btu (BTU) is equal to the Energy E in calorie (cal) times 0.00397, that conversion formula:

E(BTU) = E(cal) × 0.00397

One Calorie is equal to 0.00397 BTU:

1cal = 1cal × 0.00397 = 0.00397BTU

One BTU (international) is equal to 251.99576 Calorie:

1BTU = 1BTU × 251.99576 = 251.99576cal

E(BTU) = 5(cal) × 0.00397 = 0.01985BTU