| British thermal unit (thermochemical) | British thermal unit (International Table) |
|---|---|
| 1 BTUth | 0.99933098080235 BTUIT |
| 2 BTUth | 1.9986619616047 BTUIT |
| 3 BTUth | 2.997992942407 BTUIT |
| 4 BTUth | 3.9973239232094 BTUIT |
| 5 BTUth | 4.9966549040117 BTUIT |
| 6 BTUth | 5.9959858848141 BTUIT |
| 7 BTUth | 6.9953168656164 BTUIT |
| 8 BTUth | 7.9946478464188 BTUIT |
| 9 BTUth | 8.9939788272211 BTUIT |
| 10 BTUth | 9.9933098080235 BTUIT |
| British thermal unit (thermochemical) | British thermal unit (International Table) |
|---|---|
| 15 BTUth | 14.989964712035 BTUIT |
| 20 BTUth | 19.986619616047 BTUIT |
| 30 BTUth | 29.97992942407 BTUIT |
| 40 BTUth | 39.973239232094 BTUIT |
| 50 BTUth | 49.966549040117 BTUIT |
| 60 BTUth | 59.959858848141 BTUIT |
| 70 BTUth | 69.953168656164 BTUIT |
| 80 BTUth | 79.946478464188 BTUIT |
| 90 BTUth | 89.939788272211 BTUIT |
| 100 BTUth | 99.933098080235 BTUIT |
| British thermal unit (thermochemical) | British thermal unit (International Table) |
|---|---|
| 500 BTUth | 499.66549040117 BTUIT |
| 1000 BTUth | 999.33098080235 BTUIT |
| 1500 BTUth | 1498.9964712035 BTUIT |
| 10000 BTUth | 9993.3098080235 BTUIT |
| 50000 BTUth | 49966.549040117 BTUIT |
| 100000 BTUth | 99933.098080235 BTUIT |
| 500000 BTUth | 499665.49040117 BTUIT |
| 1000000 BTUth | 999330.98080235 BTUIT |
| 5000000 BTUth | 4996654.9040117 BTUIT |
| 10000000 BTUth | 9993309.8080235 BTUIT |