Convert calorie (cal) to btu (BTU) instantly
| Calories (cal) | BTU (BTU) |
|---|---|
| 0.001 cal | 3.9657e-06 BTU |
| 0.01 cal | 3.965651243e-05 BTU |
| 0.1 cal | 0.0003965651243 BTU |
| 0.5 cal | 0.001982825621 BTU |
| 1 cal | 0.003965651243 BTU |
| 2 cal | 0.007931302485 BTU |
| 5 cal | 0.01982825621 BTU |
| 10 cal | 0.03965651243 BTU |
| 20 cal | 0.07931302485 BTU |
| 50 cal | 0.1982825621 BTU |
| 100 cal | 0.3965651243 BTU |
| 200 cal | 0.7931302485 BTU |
| 500 cal | 1.982825621 BTU |
| 1000 cal | 3.965651243 BTU |
Energy is measured in joules (J) in SI. One calorie = 4.184 J. One kWh = 3,600,000 J. BTU (British Thermal Unit) is used in the US heating industry.
Formula: BTU = cal × 0.003965651243