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Unit Conversions

Convert commonly used shooting, ballistics and handloading measurements between metric and imperial units.

Converter

Results update as values, units and categories change.

1 gr = 0.06479891 g

Grains to Grams. 1 gr = 0.06479891 g.

Displayed with up to eight decimal places; calculations keep full double precision.

Also equals

Milligrams 64.79891 mg

Grams 0.06479891 g

Kilograms 0.0000648 kg

Ounces 0.00228571 oz

Pounds 0.00014286 lb

Unit note: gr means grains. g means grams.

Common conversion shortcuts

Useful examples

Common shooting unit conversions

1 grain equals 0.06479891 grams.
1 gram equals approximately 15.43236 grains.
1 metre per second equals approximately 3.28084 feet per second.
1 foot per second equals exactly 0.3048 metres per second.
1 joule equals approximately 0.737562 foot-pounds force.

1 foot-pound force equals approximately 1.355818 joules.
1 inch equals exactly 25.4 millimetres.
1 yard equals exactly 0.9144 metres.
1 bar equals 100 kilopascals.
1 PSI equals approximately 6.894757 kilopascals.

Safety and rounding note

Conversions are provided for reference. Always follow published component, firearm and ammunition manufacturer data when handloading. A unit conversion does not establish that a load, pressure or component combination is safe.