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When reporting on the masses of planets, astronomers often discuss them in terms of multiples of Jupiter's mass (MJ = 1.9 ×1027 kg). For example, "Astronomers recent ..more definition+
In relation to the base unit of [mass weight] => (kilograms), 1 Grains (gr) is equal to 6.47989E-5 kilograms, while 1 Jupiter Mass (Jup) = 1.9E+27 kilograms.| 300 Grains | to common mass-weight units |
|---|---|
| 300 gr | = 0.01943967 kilograms (kg) |
| 300 gr | = 19.43967 grams (g) |
| 300 gr | = 19439.67 milligrams (mg) |
| 300 gr | = 0.042857171202314 pounds (lbs) |
| 300 gr | = 0.68571473923702 ounces (oz) |
| 300 gr | = 97.19835 carats (ct) |
| 300 gr | = 300 grains (gr) |
| 300 gr | = 0.0030612255503292 stones (st) |
| 300 gr | = 14.999997685146 scruples (℈) |
| 300 gr | = 0.0015306120086884 quarters UK (1/4[UK]) |