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1 Grain =

6.479891 x 10^{-5} Kilograms

(exact result)

A grain is a unit of weight originally based on the weight of a seed, but now defined as 1/7000^{th} of a pound. It is used to weigh bullets, arrows, and sometimes medication.

The kilogram, or kilogramme, is the base unit of weight in the Metric system. It is the approximate weight of a cube of water 10 centimeters on a side.