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| 6221000000 British Thermal Unit ISO | to common energy units |
|---|---|
| 6221000000 BTUiso | = 6563503376000 joules (J) |
| 6221000000 BTUiso | = 6563503376 kilojoules (kJ) |
| 6221000000 BTUiso | = 1568714956022.9 calories (cal) |
| 6221000000 BTUiso | = 1568714956.0229 kilocalories (kcal) |
| 6221000000 BTUiso | = 4.096607981625E+31 electron volt (eV) |
| 6221000000 BTUiso | = 1823195382.2222 watt hour (Wh) |
| 6221000000 BTUiso | = 1.5054790776706E+30 atomic unit of energy (au) |
| 6221000000 BTUiso | = 1568.7149560229 tons of TNT (tTNT) |
| 6221000000 BTUiso | = 4840991656791.1 foot pound force (ft lbf) |
| 6221000000 BTUiso | = 6.563503376E+19 ergs (ergs) |