Calorie to BTU Converter

How to Convert Calories to BTUs

To convert from calories to btus, use the following factor:

1 Calorie = 252.165392 BTU

Example:

15 calories = 15 × 252.165392 BTU = 3,782.48088 BTU


Calorie to BTU Conversion Table

Calorie0.01
BTU2.521654
Calorie0.1
BTU25.216539
Calorie1
BTU252.165392
Calorie2
BTU504.330784
Calorie5
BTU1,260.82696
Calorie10
BTU2,521.65392
Calorie20
BTU5,043.307839
Calorie50
BTU12,608.269598
Calorie100
BTU25,216.539197
Calorie1,000
BTU252,165.391969

Calorie Definition

Heat needed to raise 1 gram of water by 1 °C (often kilocalories in nutrition).

History/Origin

Common in chemistry and nutrition.

Current Use

Used in nutrition to quantify food energy.

BTU Definition

British Thermal Unit, a traditional unit of heat.

History/Origin

The amount of heat required to raise the temperature of one pound of water by one degree Fahrenheit.

Current Use

Used in the power, steam, and heating/air conditioning industries.

Submit Feedback