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A quad is a unit of energy equal to 10^15 (a short-scale quadrillion) BTU, or 1.055 x 10^18 joules (1.055 exajoules or EJ) in SI units. The unit is used by the U.S. Department o ..more definition+
In relation to the base unit of [energy] => (joules), 1 Rydberg (Ry) is equal to 2.179872E-18 joules, while 1 Quads (quad) = 1.05505585262E+18 joules.| 74 Rydberg | to common energy units |
|---|---|
| 74 Ry | = 1.61310528E-16 joules (J) |
| 74 Ry | = 1.61310528E-19 kilojoules (kJ) |
| 74 Ry | = 3.8554141491396E-17 calories (cal) |
| 74 Ry | = 3.8554141491396E-20 kilocalories (kcal) |
| 74 Ry | = 1006.8190091001 electron volt (eV) |
| 74 Ry | = 4.480848E-20 watt hour (Wh) |
| 74 Ry | = 37 atomic unit of energy (au) |
| 74 Ry | = 3.8554141491396E-26 tons of TNT (tTNT) |
| 74 Ry | = 1.1897653973273E-16 foot pound force (ft lbf) |
| 74 Ry | = 1.61310528E-9 ergs (ergs) |