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| 7221000000 British Thermal Unit ISO | to common energy units |
|---|---|
| 7221000000 BTUiso | = 7618559376000 joules (J) |
| 7221000000 BTUiso | = 7618559376 kilojoules (kJ) |
| 7221000000 BTUiso | = 1820879391969.4 calories (cal) |
| 7221000000 BTUiso | = 1820879391.9694 kilocalories (kcal) |
| 7221000000 BTUiso | = 4.7551207579673E+31 electron volt (eV) |
| 7221000000 BTUiso | = 2116266493.3333 watt hour (Wh) |
| 7221000000 BTUiso | = 1.7474786079183E+30 atomic unit of energy (au) |
| 7221000000 BTUiso | = 1820.8793919694 tons of TNT (tTNT) |
| 7221000000 BTUiso | = 5619161027759 foot pound force (ft lbf) |
| 7221000000 BTUiso | = 7.618559376E+19 ergs (ergs) |