| British thermal unit (thermochemical) | British thermal unit (ISO) |
|---|---|
| 1 BTUth | 0.99985775248933 BTUISO |
| 2 BTUth | 1.9997155049787 BTUISO |
| 3 BTUth | 2.999573257468 BTUISO |
| 4 BTUth | 3.9994310099573 BTUISO |
| 5 BTUth | 4.9992887624467 BTUISO |
| 6 BTUth | 5.999146514936 BTUISO |
| 7 BTUth | 6.9990042674253 BTUISO |
| 8 BTUth | 7.9988620199147 BTUISO |
| 9 BTUth | 8.998719772404 BTUISO |
| 10 BTUth | 9.9985775248933 BTUISO |
| British thermal unit (thermochemical) | British thermal unit (ISO) |
|---|---|
| 15 BTUth | 14.99786628734 BTUISO |
| 20 BTUth | 19.997155049787 BTUISO |
| 30 BTUth | 29.99573257468 BTUISO |
| 40 BTUth | 39.994310099573 BTUISO |
| 50 BTUth | 49.992887624467 BTUISO |
| 60 BTUth | 59.99146514936 BTUISO |
| 70 BTUth | 69.990042674253 BTUISO |
| 80 BTUth | 79.988620199147 BTUISO |
| 90 BTUth | 89.98719772404 BTUISO |
| 100 BTUth | 99.985775248933 BTUISO |
| British thermal unit (thermochemical) | British thermal unit (ISO) |
|---|---|
| 500 BTUth | 499.92887624467 BTUISO |
| 1000 BTUth | 999.85775248933 BTUISO |
| 1500 BTUth | 1499.786628734 BTUISO |
| 10000 BTUth | 9998.5775248933 BTUISO |
| 50000 BTUth | 49992.887624467 BTUISO |
| 100000 BTUth | 99985.775248933 BTUISO |
| 500000 BTUth | 499928.87624467 BTUISO |
| 1000000 BTUth | 999857.75248933 BTUISO |
| 5000000 BTUth | 4999288.7624467 BTUISO |
| 10000000 BTUth | 9998577.5248933 BTUISO |