| British thermal unit (thermochemical) | Watt hour |
|---|---|
| 1 BTUth | 0.292875 W⋅h |
| 2 BTUth | 0.58575 W⋅h |
| 3 BTUth | 0.878625 W⋅h |
| 4 BTUth | 1.1715 W⋅h |
| 5 BTUth | 1.464375 W⋅h |
| 6 BTUth | 1.75725 W⋅h |
| 7 BTUth | 2.050125 W⋅h |
| 8 BTUth | 2.343 W⋅h |
| 9 BTUth | 2.635875 W⋅h |
| 10 BTUth | 2.92875 W⋅h |
| British thermal unit (thermochemical) | Watt hour |
|---|---|
| 15 BTUth | 4.393125 W⋅h |
| 20 BTUth | 5.8575 W⋅h |
| 30 BTUth | 8.78625 W⋅h |
| 40 BTUth | 11.715 W⋅h |
| 50 BTUth | 14.64375 W⋅h |
| 60 BTUth | 17.5725 W⋅h |
| 70 BTUth | 20.50125 W⋅h |
| 80 BTUth | 23.43 W⋅h |
| 90 BTUth | 26.35875 W⋅h |
| 100 BTUth | 29.2875 W⋅h |
| British thermal unit (thermochemical) | Watt hour |
|---|---|
| 500 BTUth | 146.4375 W⋅h |
| 1000 BTUth | 292.875 W⋅h |
| 1500 BTUth | 439.3125 W⋅h |
| 10000 BTUth | 2928.75 W⋅h |
| 50000 BTUth | 14643.75 W⋅h |
| 100000 BTUth | 29287.5 W⋅h |
| 500000 BTUth | 146437.5 W⋅h |
| 1000000 BTUth | 292875 W⋅h |
| 5000000 BTUth | 1464375 W⋅h |
| 10000000 BTUth | 2928750 W⋅h |