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Grains to ounces converter

Our online tools will provide quick answers to your calculation and conversion needs. On this page, you can convert weight values from grains to ounces and ounces to grains.

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

Result window

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Conversion formula

1 ounce = 437.5 grains
1 grain = 0.0022857 ounces

The symbols used are gr for grain and oz for ounce.

Sample conversion

Convert 100 grains to ounces

100 gr = 100*0.0022857 oz = 0.2285714 oz

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