| British thermal unit (thermochemical) | Kilocalories |
|---|---|
| 1 BTUth | 0.25199569789675 kcal |
| 2 BTUth | 0.5039913957935 kcal |
| 3 BTUth | 0.75598709369025 kcal |
| 4 BTUth | 1.007982791587 kcal |
| 5 BTUth | 1.2599784894837 kcal |
| 6 BTUth | 1.5119741873805 kcal |
| 7 BTUth | 1.7639698852772 kcal |
| 8 BTUth | 2.015965583174 kcal |
| 9 BTUth | 2.2679612810707 kcal |
| 10 BTUth | 2.5199569789675 kcal |
| British thermal unit (thermochemical) | Kilocalories |
|---|---|
| 15 BTUth | 3.7799354684512 kcal |
| 20 BTUth | 5.039913957935 kcal |
| 30 BTUth | 7.5598709369025 kcal |
| 40 BTUth | 10.07982791587 kcal |
| 50 BTUth | 12.599784894837 kcal |
| 60 BTUth | 15.119741873805 kcal |
| 70 BTUth | 17.639698852772 kcal |
| 80 BTUth | 20.15965583174 kcal |
| 90 BTUth | 22.679612810707 kcal |
| 100 BTUth | 25.199569789675 kcal |
| British thermal unit (thermochemical) | Kilocalories |
|---|---|
| 500 BTUth | 125.99784894837 kcal |
| 1000 BTUth | 251.99569789675 kcal |
| 1500 BTUth | 377.99354684512 kcal |
| 10000 BTUth | 2519.9569789675 kcal |
| 50000 BTUth | 12599.784894837 kcal |
| 100000 BTUth | 25199.569789675 kcal |
| 500000 BTUth | 125997.84894837 kcal |
| 1000000 BTUth | 251995.69789675 kcal |
| 5000000 BTUth | 1259978.4894837 kcal |
| 10000000 BTUth | 2519956.9789675 kcal |