Free calculators and unit converters for general and everyday use.
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.
1 ounce = 437.5 grains
1 grain = 0.0022857 ounces
The symbols used are gr for grain and oz for ounce.
Convert 100 grains to ounces
100 gr = 100*0.0022857 oz = 0.2285714 oz