| British thermal unit (thermochemical) | calories |
|---|---|
| 1 BTUth | 251.99569789675 cal |
| 2 BTUth | 503.9913957935 cal |
| 3 BTUth | 755.98709369025 cal |
| 4 BTUth | 1007.982791587 cal |
| 5 BTUth | 1259.9784894837 cal |
| 6 BTUth | 1511.9741873805 cal |
| 7 BTUth | 1763.9698852772 cal |
| 8 BTUth | 2015.965583174 cal |
| 9 BTUth | 2267.9612810707 cal |
| 10 BTUth | 2519.9569789675 cal |
| British thermal unit (thermochemical) | calories |
|---|---|
| 15 BTUth | 3779.9354684512 cal |
| 20 BTUth | 5039.913957935 cal |
| 30 BTUth | 7559.8709369025 cal |
| 40 BTUth | 10079.82791587 cal |
| 50 BTUth | 12599.784894837 cal |
| 60 BTUth | 15119.741873805 cal |
| 70 BTUth | 17639.698852772 cal |
| 80 BTUth | 20159.65583174 cal |
| 90 BTUth | 22679.612810707 cal |
| 100 BTUth | 25199.569789675 cal |
| British thermal unit (thermochemical) | calories |
|---|---|
| 500 BTUth | 125997.84894837 cal |
| 1000 BTUth | 251995.69789675 cal |
| 1500 BTUth | 377993.54684512 cal |
| 10000 BTUth | 2519956.9789675 cal |
| 50000 BTUth | 12599784.894837 cal |
| 100000 BTUth | 25199569.789675 cal |
| 500000 BTUth | 125997848.94837 cal |
| 1000000 BTUth | 251995697.89675 cal |
| 5000000 BTUth | 1259978489.4837 cal |
| 10000000 BTUth | 2519956978.9675 cal |