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| 1 British Thermal Unit Thermochemical | to common energy units |
|---|---|
| 1 BTUth | = 1054.35026444 joules (J) |
| 1 BTUth | = 1.05435026444 kilojoules (kJ) |
| 1 BTUth | = 251.99576109943 calories (cal) |
| 1 BTUth | = 0.25199576109943 kilocalories (kcal) |
| 1 BTUth | = 6.5807229177745E+21 electron volt (eV) |
| 1 BTUth | = 0.29287507345556 watt hour (Wh) |
| 1 BTUth | = 2.4183765478891E+20 atomic unit of energy (au) |
| 1 BTUth | = 2.5199576109943E-7 tons of TNT (tTNT) |
| 1 BTUth | = 777.64884713142 foot pound force (ft lbf) |
| 1 BTUth | = 10543502644.4 ergs (ergs) |
| British Thermal Unit Thermochemical | to Rydberg (table conversion) |
|---|---|
| 1 BTUth | = 4.8367530957781E+20 Ry |
| 2 BTUth | = 9.6735061915562E+20 Ry |
| 3 BTUth | = 1.4510259287334E+21 Ry |
| 4 BTUth | = 1.9347012383112E+21 Ry |
| 5 BTUth | = 2.4183765478891E+21 Ry |
| 6 BTUth | = 2.9020518574669E+21 Ry |
| 7 BTUth | = 3.3857271670447E+21 Ry |
| 8 BTUth | = 3.8694024766225E+21 Ry |
| 9 BTUth | = 4.3530777862003E+21 Ry |
| 10 BTUth | = 4.8367530957781E+21 Ry |
| 20 BTUth | = 9.6735061915562E+21 Ry |
| 30 BTUth | = 1.4510259287334E+22 Ry |
| 40 BTUth | = 1.9347012383112E+22 Ry |
| 50 BTUth | = 2.4183765478891E+22 Ry |
| 60 BTUth | = 2.9020518574669E+22 Ry |
| 70 BTUth | = 3.3857271670447E+22 Ry |
| 80 BTUth | = 3.8694024766225E+22 Ry |
| 90 BTUth | = 4.3530777862003E+22 Ry |
| 100 BTUth | = 4.8367530957781E+22 Ry |
| 200 BTUth | = 9.6735061915562E+22 Ry |
| 300 BTUth | = 1.4510259287334E+23 Ry |
| 400 BTUth | = 1.9347012383112E+23 Ry |
| 500 BTUth | = 2.4183765478891E+23 Ry |
| 600 BTUth | = 2.9020518574669E+23 Ry |
| 700 BTUth | = 3.3857271670447E+23 Ry |
| 800 BTUth | = 3.8694024766225E+23 Ry |
| 900 BTUth | = 4.3530777862003E+23 Ry |
| 1000 BTUth | = 4.8367530957781E+23 Ry |
| 2000 BTUth | = 9.6735061915562E+23 Ry |
| 4000 BTUth | = 1.9347012383112E+24 Ry |
| 5000 BTUth | = 2.4183765478891E+24 Ry |
| 7500 BTUth | = 3.6275648218336E+24 Ry |
| 10000 BTUth | = 4.8367530957781E+24 Ry |
| 25000 BTUth | = 1.2091882739445E+25 Ry |
| 50000 BTUth | = 2.4183765478891E+25 Ry |
| 100000 BTUth | = 4.8367530957781E+25 Ry |
| 1000000 BTUth | = 4.8367530957781E+26 Ry |
| 1000000000 BTUth | = 4.8367530957781E+29 Ry |