BTU (BTU)
BTU is used in heat engineering, air conditioning, heating, and English-language engineering tables.
History: BTU began in British heat engineering as the heat required to warm a pound of water by one degree Fahrenheit.
Quickly convert BTU to calories without lookup tables or manual math.
This page is focused on converting BTU to calories. Type a number into the first field and the result appears immediately in the second field.
Example: 1 BTU = 252.1644007218 cal. Conversion formula: result = value × 1055.05585262 / 4.184.
Use this converter for everyday calculations, study notes, engineering checks, and quick value verification without installing a separate app.
BTU is used in heat engineering, air conditioning, heating, and English-language engineering tables.
History: BTU began in British heat engineering as the heat required to warm a pound of water by one degree Fahrenheit.
The calorie is used for heat energy and often appears in nutrition and chemistry.
History: the calorie originated in heat science as a quantity of heat related to warming water.
Enter a value in the BTU field. The converter applies the formula "result = value × 1055.05585262 / 4.184" and immediately shows the result in calories.
1 BTU = 252.1644007218 cal.
Yes. Use the swap button or choose the reverse pair from the full conversion list.