Convert Grain to Milligram

Simple, fast and user-friendly online tool to convert Grain to Milligram ( gr to mg ) vice-versa and other Mass related units. Learn and share how to convert Grain to Milligram ( gr to mg ). Click to expand short unit definition.

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  1 Grain (gr) x 64.79891 =   64.79891 Milligram (mg)
Grain Conversion Table
Grain(gr) to Kilogram (kg) = 0.00006479890980240584 Kilogram (kg)
Grain(gr) to Gram (g) = 0.06479890980240584 Gram (g)
Grain(gr) to Decigram (dg) = 0.6479890980240584 Decigram (dg)
Grain(gr) to Centigram (cg) = 6.479891 Centigram (cg)
Grain(gr) to Milligram (mg) = 64.79891 Milligram (mg)
Grain(gr) to Microgram (mcg) = 64,798.91 Microgram (mcg)
Grain(gr) to Nanogram (ng) = 64,798,910 Nanogram (ng)
Grain(gr) to Picogram (pg) = 64,799,000,000 Picogram (pg)
Grain(gr) to Femtogram (fg) = 64,799,000,000,000 Femtogram (fg)
Grain(gr) to Dekagram (dag) = 0.006479890980240583 Dekagram (dag)
Grain(gr) to Hectogram (hg) = 0.0006479890980240583 Hectogram (hg)
Grain(gr) to Megagram (Mg) = 6.480041472265422e-8 Megagram (Mg)
Grain(gr) to Metric ton (mt) = 6.480041472265422e-8 Metric ton (mt)
Grain(gr) to Long ton (Lt) = 6.377551020408163e-8 Long ton (Lt)
Grain(gr) to Short ton (tn) = 7.142857142857142e-8 Short ton (tn)
Grain(gr) to Metric quintal (Qq) = 6.480041472265422e-7 Metric quintal (Qq)
Grain(gr) to US quintal (Qq) = 0.000001428571430612245 US quintal (Qq)
Grain(gr) to French quintal (Qq) = 4.350474201687984e-7 French quintal (Qq)
Grain(gr) to Stone (st) = 0.00001020408164306539 Stone (st)
Grain(gr) to Pound (lb) = 0.0001428571430612245 Pound (lb)
Grain(gr) to Ounce (oz) = 0.002285714285714286 Ounce (oz)
Grain(gr) to Troy ounce (ozt) = 0.0020833333333333333 Troy ounce (ozt)
Grain(gr) to Slug (slug) = 0.0000044401357564403315 Slug (slug)
Grain(gr) to Tola (tola) = 0.005555555555555556 Tola (tola)
Grain(gr) to Dram (dr) = 0.036571428571428574 Dram (dr)
Grain(gr) to Carat (ct) = 0.32399455006175387 Carat (ct)
Grain(gr) to Grain (gr) = 1 Grain (gr)
Grain(gr) to Atomic mass unit (amu) = 3.9023e+22 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.


What is Milligram ?

A Milligram (mg) is a metric unit of mass equal to one-thousandth of a gram (0.001 grams). It is commonly used for measuring very small amounts of substances or objects, especially in fields such as medicine, chemistry, and pharmacology.
To illustrate:
- 1 gram (g) = 1000 milligrams (mg)
- 1 milligram (mg) = 0.001 grams (g)

In practical terms, a milligram represents a tiny fraction of a gram. For example, a small grain of salt typically weighs about 0.05 milligrams.

Milligrams are essential in pharmaceuticals for measuring precise doses of medications, in analytical chemistry for weighing small samples, and in nutritional science for assessing the content of vitamins and minerals in food. They provide a precise and standardized way to quantify very small masses within the metric system, ensuring accuracy in scientific experiments, medical treatments, and everyday measurements.

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