# British Thermal Units to Calories Conversion

Enter the energy in british thermal units below to get the value converted to calories.

**Results in Calories:**

## How to Convert British Thermal Units to Calories

To convert a british thermal unit measurement to a calorie measurement, multiply the energy by the conversion ratio.

Since one british thermal unit is equal to 252.164401 calories, you can use this simple formula to convert:

The energy in calories is equal to the british thermal units multiplied by 252.164401.

**For example,**here's how to convert 5 british thermal units to calories using the formula above.

British thermal units and calories are both units used to measure energy. Keep reading to learn more about each unit of measure.

## British Thermal Units

British thermal units are a measure of heat energy. Specifically, one british thermal unit is equal to the amount of heat energy required to increase the temperature of one pound of water one degree Fahrenheit. They are often used as a way to rate the energy heat producing appliances such furnaces, and to price heating fuels such as natural gas.

The british thermal unit is a US customary unit of energy. British thermal units can be abbreviated as *BTU*; for example, 1 british thermal unit can be written as 1 BTU.

## Calories

One calorie is equal to the heat needed to raise the temperature of one gram of water from 14.5 to 15.5 degrees Celsius.

When measuring the energy content in foods, the large calorie, or kilocalorie is used, but it's often still just called a "calorie." When both the calorie and large calorie are used in the same context it is common to refer to the calorie as a "small calorie."

Calories can be abbreviated as *cal*; for example, 1 calorie can be written as 1 cal.

## British Thermal Unit to Calorie Conversion Table

British Thermal Units | Calories |
---|---|

1 BTU | 252.16 cal |

2 BTU | 504.33 cal |

3 BTU | 756.49 cal |

4 BTU | 1,009 cal |

5 BTU | 1,261 cal |

6 BTU | 1,513 cal |

7 BTU | 1,765 cal |

8 BTU | 2,017 cal |

9 BTU | 2,269 cal |

10 BTU | 2,522 cal |

11 BTU | 2,774 cal |

12 BTU | 3,026 cal |

13 BTU | 3,278 cal |

14 BTU | 3,530 cal |

15 BTU | 3,782 cal |

16 BTU | 4,035 cal |

17 BTU | 4,287 cal |

18 BTU | 4,539 cal |

19 BTU | 4,791 cal |

20 BTU | 5,043 cal |

21 BTU | 5,295 cal |

22 BTU | 5,548 cal |

23 BTU | 5,800 cal |

24 BTU | 6,052 cal |

25 BTU | 6,304 cal |

26 BTU | 6,556 cal |

27 BTU | 6,808 cal |

28 BTU | 7,061 cal |

29 BTU | 7,313 cal |

30 BTU | 7,565 cal |

31 BTU | 7,817 cal |

32 BTU | 8,069 cal |

33 BTU | 8,321 cal |

34 BTU | 8,574 cal |

35 BTU | 8,826 cal |

36 BTU | 9,078 cal |

37 BTU | 9,330 cal |

38 BTU | 9,582 cal |

39 BTU | 9,834 cal |

40 BTU | 10,087 cal |