The approximate weight of the 12 million dollars in quarters is 272 metric tons or 300 short tons. A quarter dollar is ÂĽ of a dollar, hence the name. So, 12 million dollars would result in 48 million quarter coins, because one dollar equals 4 quarters, therefor 12 million dollars equal 12,000,000 dollars * 4 = 48,000,000 quarters. The weight of one quarter coin is 5.670 grams or 0.2 ounces. So, the weight of 48 million quarter coins is 48,000,000 * 5.670 g = 272,160,000 g = 272,160 kg = 272.16 t (metric tons) or in imperial units 48,000,000 * 0.2 oz = 9,600,000 oz = 600,000 lb = 300 sh tn.