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How to Convert Grains to Drams

In the old English system of weights, two units are the grain and the dram. The grain is abbreviated "gr." and the dram is abbreviated "dr." or "dr. ap." It takes 3 scruples to equal one dram, and 20 grains to equal 1 scruple. Therefore, it takes 60 grains to equal 1 dram. Knowing the conversion factors allows you to quickly and accurately convert between grains and drams.

Things You'll Need

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Instructions

    • 1

      Divide the number of grains by 60 to convert to drams. For example, if you have 360 grains, divide by 60 to get 6 dr.

    • 2

      Multiply the number of grains by 0.01667 to convert to drams. In this example, check your answer by multiplying 360 by 0.01667 to verify your answer of 6 dr.

    • 3

      Verify your answer with an online grains-to-drams calculator. Enter the number of grains and the number of drams will be displayed.

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