Calculators » Conversion » Weight » Gr to mg/ Mg to gr

Convert between Grain and Milligram

Our online tools will provide quick answers to your calculation and conversion needs. On this page, you can calculate weight/ mass unit conversion from grains to milligrams and milligrams to grains.

Weight in grain (gr)

Weight in milligram (mg)

Enter the value you want to convert, and leave the target field blank.

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Conversion formula

1 milligram (mg) = 0.0154324 grains (gr)
or,
1 grain (gr) = 64.79891 milligrams (mg)

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