British thermal units to kilocalories converter
Kilocalories (kcal)
1 British thermal unit = 0.2521644007 kilocalories
How to convert British thermal units to kilocalories
kcal = BTU × 0.252164400722
Multiply the number of British thermal units by 0.252164400722 to get kilocalories. Going the other way, divide by 0.252164400722 (or multiply by 3.96566683139).
One British thermal unit is exactly defined as 0.252164400722 kilocalories (to 12 significant figures), and one kilocalorie is 3.96566683139 British thermal units.
Worked examples
- Convert 5 British thermal units: 5 × 0.252164400722 = 1.260822004 1.260822004 kilocalories.
- Convert 12.5 British thermal units: 12.5 × 0.252164400722 = 3.152055009 3.152055009 kilocalories.
- Convert 250 British thermal units: 250 × 0.252164400722 = 63.04110018 63.04110018 kilocalories.
Quick-reference table
| BTU | kcal |
|---|---|
| 1 | 0.2521644007 |
| 2 | 0.5043288014 |
| 3 | 0.7564932022 |
| 5 | 1.260822004 |
| 10 | 2.521644007 |
| 15 | 3.782466011 |
| 20 | 5.043288014 |
| 25 | 6.304110018 |
| 50 | 12.60822004 |
| 75 | 18.91233005 |
| 100 | 25.21644007 |
| 1,000 | 252.1644007 |
| kcal | BTU |
|---|---|
| 1 | 3.965666831 |
| 2 | 7.931333663 |
| 3 | 11.89700049 |
| 5 | 19.82833416 |
| 10 | 39.65666831 |
| 15 | 59.48500247 |
| 20 | 79.31333663 |
| 25 | 99.14167078 |
| 50 | 198.2833416 |
| 75 | 297.4250124 |
| 100 | 396.5666831 |
| 1,000 | 3,965.666831 |
Related conversions
- ⇄ Kilocalories to British thermal units
- British thermal units to joules
- British thermal units to kilojoules
- British thermal units to calories
- British thermal units to watt-hours
- British thermal units to kilowatt-hours
- British thermal units to therms
- British thermal units to electronvolts
- British thermal units to foot-pounds
Frequently asked questions
How many kilocalories are in 1 British thermal unit?
1 British thermal unit equals 0.2521644007 kilocalories.
What is the formula to convert British thermal units to kilocalories?
Use kcal = BTU × 0.252164400722. Multiply the number of British thermal units by 0.252164400722 to get kilocalories. Going the other way, divide by 0.252164400722 (or multiply by 3.96566683139).
What is 100 British thermal units in kilocalories?
100 British thermal units is 25.21644007 kilocalories.