Convert kilocalories to british thermal units
1 kcal = 3.96566683139 BTU — exactly. Both units are defined against the SI, so this factor is a fraction, not an approximation.
How to convert kilocalories to british thermal units
Multiply the number of kilocalories by 3.96566683139 to get british thermal units.
Kilocalorie: The Calorie on food labels — 1000 small calories.
British thermal unit: International Table BTU, exactly 1055.055 852 62 J. HVAC capacity is quoted in BTU/h.
Kilocalorie to British thermal unit conversion table
| Kilocalories (kcal) | British thermal units (BTU) |
|---|---|
| 1 kcal | 3.965 666 8 |
| 2 kcal | 7.931 333 7 |
| 3 kcal | 11.897 |
| 5 kcal | 19.828 334 |
| 10 kcal | 39.656 668 |
| 20 kcal | 79.313 337 |
| 25 kcal | 99.141 671 |
| 50 kcal | 198.283 34 |
| 100 kcal | 396.566 68 |
| 250 kcal | 991.416 71 |
| 500 kcal | 1982.8334 |
| 1000 kcal | 3965.6668 |
British thermal unit to Kilocalorie conversion table
| British thermal units (BTU) | Kilocalories (kcal) |
|---|---|
| 1 BTU | 0.252 164 4 |
| 2 BTU | 0.504 328 8 |
| 3 BTU | 0.756 493 2 |
| 5 BTU | 1.260 822 |
| 10 BTU | 2.521 644 |
| 20 BTU | 5.043 288 |
| 25 BTU | 6.304 11 |
| 50 BTU | 12.608 22 |
| 100 BTU | 25.216 44 |
| 250 BTU | 63.0411 |
| 500 BTU | 126.0822 |
| 1000 BTU | 252.1644 |
Frequently asked
How many british thermal units are in a kilocalorie?
One kilocalorie equals 3.965666831 british thermal units (kcal → BTU). That figure is exact, not rounded.
How do you convert kilocalories to british thermal units?
Multiply the number of kilocalories by 3.96566683139 to get british thermal units.
What is 1 BTU in kilocalories?
One british thermal unit is 0.2521644007 kilocalories.
What is 10 kcal in BTU?
10 kcal = 39.656 668 BTU.
What exactly is a kilocalorie?
The Calorie on food labels — 1000 small calories.
What exactly is a british thermal unit?
International Table BTU, exactly 1055.055 852 62 J. HVAC capacity is quoted in BTU/h.