British Thermal Units to Calories
Convert British thermal units (BTU) to calories (cal). Type in either box; the other updates as you go.
How to convert British thermal units to calories
To convert British thermal units to calories, multiply the number of British thermal units by 252.1644007.
Example
Convert 5 British thermal units to calories:
British Thermal Unit to calorie conversion chart
| British Thermal Units (BTU) | Calories (cal) |
|---|---|
| 1 BTU | 252.1644 cal |
| 2 BTU | 504.3288 cal |
| 3 BTU | 756.4932 cal |
| 4 BTU | 1,008.658 cal |
| 5 BTU | 1,260.822 cal |
| 6 BTU | 1,512.986 cal |
| 7 BTU | 1,765.151 cal |
| 8 BTU | 2,017.315 cal |
| 9 BTU | 2,269.48 cal |
| 10 BTU | 2,521.644 cal |
| 12 BTU | 3,025.973 cal |
| 15 BTU | 3,782.466 cal |
| 20 BTU | 5,043.288 cal |
| 25 BTU | 6,304.11 cal |
| 30 BTU | 7,564.932 cal |
| 40 BTU | 10,086.58 cal |
| 50 BTU | 12,608.22 cal |
| 60 BTU | 15,129.86 cal |
| 70 BTU | 17,651.51 cal |
| 75 BTU | 18,912.33 cal |
| 80 BTU | 20,173.15 cal |
| 90 BTU | 22,694.8 cal |
| 100 BTU | 25,216.44 cal |
| 150 BTU | 37,824.66 cal |
| 200 BTU | 50,432.88 cal |
| 250 BTU | 63,041.1 cal |
| 500 BTU | 126,082.2 cal |
| 1,000 BTU | 252,164.4 cal |
Going the other way? See the calories to British thermal units chart.
About the units
British Thermal Unit (BTU)
A British thermal unit (International Table) is about 1,055 joules, the heat that warms one pound of water by one degree Fahrenheit.
Calorie (cal)
A small calorie (thermochemical) is exactly 4.184 joules, the energy to warm one gram of water by about one degree Celsius.
Frequently asked questions
How many calories are in a British thermal unit?
There are 252.1644007 calories in a British thermal unit.
How many British thermal units are in a calorie?
There are 0.003965666831 British thermal units in a calorie.
How do you convert British thermal units to calories?
To convert British thermal units to calories, multiply the number of British thermal units by 252.1644007.
What is 5 British thermal units in calories?
5 British thermal units equals 1,260.82 calories.
Convert between joules, calories, kilocalories, kilowatt-hours and BTU. Open the energy converter to see a value in every unit at once.