Calories to BTU
Type a value in cal and the BTU equivalent appears instantly.
How to convert cal to BTU
Multiply the cal value by 0.003965667.
1 cal = 0.003965667 BTU
Quick conversion table
| cal | BTU |
|---|---|
| 1 | 0.003965667 |
| 2 | 0.007931334 |
| 5 | 0.019828334 |
| 10 | 0.039656668 |
| 20 | 0.079313337 |
| 50 | 0.198283342 |
| 100 | 0.396566683 |
| 500 | 1.982833 |
| 1000 | 3.965667 |
About the units
Calories (cal): The small (gram) calorie: 4.184 J. Chemistry, not food labels.
BTU (BTU): British thermal unit, about 1,055 J. Heating and air conditioning in the US.