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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.1901805791 Rydberg | to common energy units |
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1901805791 Ry | = 4.1456931932388E-9 joules (J) |
1901805791 Ry | = 4.1456931932388E-12 kilojoules (kJ) |
1901805791 Ry | = 9.9084445345094E-10 calories (cal) |
1901805791 Ry | = 9.9084445345094E-13 kilocalories (kcal) |
1901805791 Ry | = 25875327324.263 electron volt (eV) |
1901805791 Ry | = 1.1515814425663E-12 watt hour (Wh) |
1901805791 Ry | = 950902895.5 atomic unit of energy (au) |
1901805791 Ry | = 9.9084445345094E-19 tons of TNT (tTNT) |
1901805791 Ry | = 3.0577063818493E-9 foot pound force (ft lbf) |
1901805791 Ry | = 0.041456931932388 ergs (ergs) |