Convert Kilocalories to British Thermal Units
1 kilocalorie = 3.965667 British thermal units. Type any value below to convert in either direction — the calculation happens in your browser.
Kilocalories to British Thermal Units formula
Multiply the number of kilocalories by 3.965667 to get British thermal units.
British thermal units = kilocalories × 3.965667To go the other way: divide the number of British thermal units by 3.965667, or multiply by 0.2521644.
kilocalories = British thermal units ÷ 3.965667Kilocalories to British Thermal Units conversion table
| Kilocalories | British Thermal Units |
|---|---|
| 1 kcal | 3.965667 BTU |
| 2 kcal | 7.931334 BTU |
| 3 kcal | 11.897 BTU |
| 4 kcal | 15.862667 BTU |
| 5 kcal | 19.828334 BTU |
| 6 kcal | 23.794001 BTU |
| 7 kcal | 27.759668 BTU |
| 8 kcal | 31.725335 BTU |
| 9 kcal | 35.691001 BTU |
| 10 kcal | 39.656668 BTU |
| 15 kcal | 59.485002 BTU |
| 20 kcal | 79.313337 BTU |
| 25 kcal | 99.141671 BTU |
| 30 kcal | 118.970005 BTU |
| 40 kcal | 158.626673 BTU |
| 50 kcal | 198.283342 BTU |
| 75 kcal | 297.425012 BTU |
| 100 kcal | 396.566683 BTU |
| 250 kcal | 991.416708 BTU |
| 500 kcal | 1,982.833 BTU |
| 1,000 kcal | 3,965.667 BTU |
British Thermal Units to Kilocalories conversion table
| British Thermal Units | Kilocalories |
|---|---|
| 1 BTU | 0.2521644 kcal |
| 2 BTU | 0.5043288 kcal |
| 3 BTU | 0.7564932 kcal |
| 4 BTU | 1.008658 kcal |
| 5 BTU | 1.260822 kcal |
| 6 BTU | 1.512986 kcal |
| 7 BTU | 1.765151 kcal |
| 8 BTU | 2.017315 kcal |
| 9 BTU | 2.26948 kcal |
| 10 BTU | 2.521644 kcal |
About the kilocalorie
A kilocalorie is 1,000 calories and is the "Calorie" printed on nutrition labels.
About the British thermal unit
A BTU is the energy needed to raise one pound of water by one degree Fahrenheit, about 1,055 joules.
Frequently asked questions
How many British thermal units are in a kilocalorie?
There are 3.965667 British thermal units in one kilocalorie.
How many kilocalories are in a British thermal unit?
There are 0.2521644 kilocalories in one British thermal unit.
Is this conversion exact?
The ratio between the kilocalorie and the British thermal unit is fixed by definition, so the conversion is exact — the figures shown here are rounded for readability only.
What is 10 kilocalories in British thermal units?
10 kilocalories equals 39.656668 British thermal units.
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