Grain Conversion

A Grain (gr) is a unit of mass or weight measurement primarily used in the context of firearms, ammunition, and sometimes in pharmaceuticals and food. It is equal to approximately 64.79891 milligrams or about 0.0648 grams.

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   Grain (gr) =    Kilogram (kg)
Grain Conversion Table
Grain(gr) to Kilogram (kg) = 1 Kilogram (kg)
Grain(gr) to Gram (g) = 1 Gram (g)
Grain(gr) to Decigram (dg) = 1 Decigram (dg)
Grain(gr) to Centigram (cg) = 1 Centigram (cg)
Grain(gr) to Milligram (mg) = 1 Milligram (mg)
Grain(gr) to Microgram (mcg) = 1 Microgram (mcg)
Grain(gr) to Nanogram (ng) = 1 Nanogram (ng)
Grain(gr) to Picogram (pg) = 1 Picogram (pg)
Grain(gr) to Femtogram (fg) = 1 Femtogram (fg)
Grain(gr) to Dekagram (dag) = 1 Dekagram (dag)
Grain(gr) to Hectogram (hg) = 1 Hectogram (hg)
Grain(gr) to Megagram (Mg) = 1 Megagram (Mg)
Grain(gr) to Metric ton (mt) = 1 Metric ton (mt)
Grain(gr) to Long ton (Lt) = 1 Long ton (Lt)
Grain(gr) to Short ton (tn) = 1 Short ton (tn)
Grain(gr) to Metric quintal (Qq) = 1 Metric quintal (Qq)
Grain(gr) to US quintal (Qq) = 1 US quintal (Qq)
Grain(gr) to French quintal (Qq) = 1 French quintal (Qq)
Grain(gr) to Stone (st) = 1 Stone (st)
Grain(gr) to Pound (lb) = 1 Pound (lb)
Grain(gr) to Ounce (oz) = 1 Ounce (oz)
Grain(gr) to Troy ounce (ozt) = 1 Troy ounce (ozt)
Grain(gr) to Slug (slug) = 1 Slug (slug)
Grain(gr) to Tola (tola) = 1 Tola (tola)
Grain(gr) to Dram (dr) = 1 Dram (dr)
Grain(gr) to Carat (ct) = 1 Carat (ct)
Grain(gr) to Grain (gr) = 1 Grain (gr)
Grain(gr) to Atomic mass unit (amu) = 1 Atomic mass unit (amu)

What is Grain ?

A Grain (gr) is a unit of mass or weight measurement primarily used in the context of firearms, ammunition, and sometimes in pharmaceuticals and food. It is equal to approximately 64.79891 milligrams or about 0.0648 grams.

To break it down:
- 1 grain = approximately 64.79891 milligrams
- 1 gram ≈ 15.432 grains

In everyday terms, a grain represents a very small amount of mass. Historically, it was originally based on the weight of a single grain of wheat or barley. Today, grains are commonly used to measure the weight of bullets, gunpowder, and medications, particularly in the United States.

For example, a typical small-caliber bullet might weigh about 50 grains, and some over-the-counter medications list dosages in grains.

Understanding grains is important in specific fields where precise measurement of small quantities is crucial, such as in firearms, pharmacy, and sometimes in cooking and nutrition. While not as widely used in everyday contexts as grams or ounces, grains provide a specialized unit of measurement that serves important purposes in these industries.


List of Mass conversion units
Kilogram Gram Decigram Centigram Milligram Microgram Nanogram Picogram Femtogram Dekagram Hectogram Megagram Metric ton Long ton Short ton Metric quintal US quintal French quintal Stone Pound Ounce Troy ounce Slug Tola Dram Carat Grain Atomic mass unit