1 kilocalorie (kcal) = 3.965666831 British thermal units (BTU). To convert, multiply by 3.965666831: BTU = kcal × 3.965666831. For example, 5 kcal = 19.82833416 BTU.
BTU = kcal × 3.965666831
Kilocalories to British thermal units table
| Kilocalories (kcal) | British thermal units (BTU) |
|---|---|
| 1 | 3.965666831 |
| 2 | 7.931333663 |
| 3 | 11.89700049 |
| 4 | 15.86266733 |
| 5 | 19.82833416 |
| 10 | 39.65666831 |
| 20 | 79.31333663 |
| 25 | 99.14167078 |
| 50 | 198.2833416 |
| 100 | 396.5666831 |
| 250 | 991.4167078 |
| 500 | 1,982.833416 |
| 1,000 | 3,965.666831 |
The two units
Kilocalorie (kcal). One thousand calories: the "Calorie" on food labels.
British thermal unit (BTU). The International Table BTU, used for heating and air-conditioning ratings.
Convert kilocalories to other units
- Kilocalories to joules — 1 kcal = 4,184 J
- Kilocalories to kilojoules — 1 kcal = 4.184 kJ
- Kilocalories to calories — 1 kcal = 1,000 cal
- Kilocalories to watt-hours — 1 kcal = 1.162222222 Wh
- Kilocalories to kilowatt-hours — 1 kcal = 0.0011622222 kWh
- Kilocalories to electronvolts — 1 kcal = 2.611447e+22 eV
Convert other units to British thermal units
Questions people ask
- How many British thermal units are in a kilocalorie?
- 3.965666831.
- How do you convert kilocalories to British thermal units?
- BTU = kcal × 3.965666831. It is the same as dividing by 0.2521644007.
- How do you convert British thermal units back to kilocalories?
- kcal = BTU ÷ 3.965666831. See British thermal units to kilocalories.
Results use the legal definitions of each unit and are checked against the Pint unit library. Display rounds to 10 significant digits. All unit conversions · More tools
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