Convert 18 Grains to Milligrams
How heavy is 18 grains? How much does 18 grains weigh in milligrams? 18 gr to mg conversion.
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18 Grains ≈
1,166.3804 Milligrams
result rounded
Decimal places
Result in Plain English
18 grains is equal to about 1,170 milligrams.
In Scientific Notation
18 grains
= 1.8 x 101 grains
≈ 1.16638 x 103 milligrams
Grains
A grain is a unit of weight originally based on the weight of a seed, but now defined as 1/7000th of a pound. It is used to weigh bullets, arrows, and sometimes medication.
Milligrams
A milligram is 1/1000th of a gram. It is the approximate weight of a cube of water 1 millimeter on a side.Abbreviation: mg