Use this free online calculator to convert Grain to Gram instantly. This common weight conversions conversion tool provides accurate results for all your measurement needs.

Quick Reference

1 Grain = 0.064799 Gram

1 Gram = 15.4324 Grain

Grain to Gram Conversion Formula

To convert Grain to Gram, multiply by 0.064799.

Gram = Grain × 0.064799

Grain = Gram × 15.4324

To convert Gram back to Grain, divide by 0.064799 (or multiply by 15.4324).

About These Units

About Grain

The grain is a traditional unit of weight. The grain, equal to 1/480 troy ounce, or exactly 64.798 91 milligrams, was the legal foundation of traditional English weight systems, with various pounds being defined as a specified number of grains: 5760 grains in a troy pound and 7000 grains in an avoirdupois pound, for example. In the version of the troy system used by jewelers, there are 24 grains in a pennyweight and 20 pennyweight in an ounce. In the version used by apothecaries, there are 20 grains in a scruple, 3 scruples in a dram, and 8 drams in an ounce. Originally the grain was defined in England as the weight of a barleycorn. This made the English grain larger the corresponding grain units of France and other nations of the Continent, because those units were based on the weight of the smaller wheat grain.

About Gram

The metric unit of mass, called the "gram" was defined as the mass of one cubic centimeter (a cube that is 1/100 of a meter on each side) of water at its temperature of maximum density.

Grain to Gram Conversion Table

Grain	Gram	Gram	Grain
0.1	6.480e-3	0.1	1.5432
0.5	0.032399	0.5	7.7162
1	0.064799	1	15.4324
2	0.129598	2	30.8647
5	0.323995	5	77.1618
10	0.647989	10	154.3236
20	1.2960	20	308.6472
25	1.6200	25	385.8090
50	3.2399	50	771.6179
100	6.4799	100	1543.24
250	16.1997	250	3858.09
500	32.3995	500	7716.18
1000	64.7989	1000	15432.36

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