Convert BTU to kilocalories
British thermal units to kilocalories. Enter a value to convert, or use the BTU to kilocalories chart further down the page.
1 British thermal unit equals 0.252164 kilocalories. Going the other way, 1 kilocalorie = 3.96567 British thermal units.
How to convert BTU to kilocalories
To convert British thermal units to kilocalories, multiply the British thermal unit value by 0.2521644007. You can also divide by 3.965666831 to get the same answer.
kcal = BTU × 0.2521644007
Worked example
Convert 15 BTU to kilocalories:
15 BTU = 3.78247 kcal
BTU to kilocalories conversion chart
Use this BTU to kilocalories table for quick reference without typing anything.
| British thermal units (BTU) | kilocalories (kcal) |
|---|---|
| 0.01 BTU | 0.00252164 kcal |
| 0.1 BTU | 0.0252164 kcal |
| 1 BTU | 0.252164 kcal |
| 2 BTU | 0.504329 kcal |
| 3 BTU | 0.756493 kcal |
| 5 BTU | 1.26082 kcal |
| 10 BTU | 2.52164 kcal |
| 20 BTU | 5.04329 kcal |
| 50 BTU | 12.6082 kcal |
| 100 BTU | 25.2164 kcal |
| 1,000 BTU | 252.164 kcal |
What is a British thermal unit?
The BTU is the energy needed to raise one pound of water by one degree Fahrenheit — about 1,055 joules. It rates heating and air-conditioning equipment in the US.
What is a kilocalorie?
The kilocalorie, written kcal or capital-C Calorie, is 1,000 thermochemical calories — the unit meant by “calories” on food packaging.
Frequently asked questions
How many kilocalories are in a British thermal unit?
1 BTU equals 0.252164 kilocalories. Going the other way, 1 kilocalories is 3.96567 BTU.
How do you convert BTU to kilocalories?
To convert British thermal units to kilocalories, multiply the British thermal unit value by 0.2521644007. You can also divide by 3.965666831 to get the same answer.
What is 10 BTU in kilocalories?
10 BTU equals 2.52164 kilocalories. The conversion chart on this page lists the other values people look up most often.
Related energy conversions
Convert BTU to other units
- kilocalories to BTU
- BTU to joules
- BTU to kilojoules
- BTU to calories
- BTU to kWh
- BTU to Wh
- BTU to foot pounds
Convert other units to kilocalories
- joules to kilocalories
- kilojoules to kilocalories
- calories to kilocalories
- kWh to kilocalories
- Wh to kilocalories
- foot pounds to kilocalories
Popular conversions
cm to inchesinches to cmkg to lbslbs to kgCelsius to FahrenheitFahrenheit to Celsiusmm to inchesinches to mmkm to milesmiles to kmmeters to feetfeet to meterscm to feetfeet to inchesinches to feetml to fl ozfl oz to mlliters to gallonsgallons to literscups to ml