Convert 21 Milligrams to Ounces
How heavy is 21 milligrams? How much does 21 milligrams weigh in ounces? 21 mg to oz conversion.
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21 Milligrams ≈
0.00074075320 Ounces
result rounded
Decimal places
Result in Pounds and Ounces
21 milligrams is equal to about 0 pounds and 0 ounces.
Result in Plain English
21 milligrams is equal to about 741 millionths of a ounce.
In Scientific Notation
21 milligrams
= 2.1 x 101 milligrams
≈ 7.40753 x 10-4 ounces
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
Ounces
An ounce is a unit of weight equal to 1/16th of a pound or about 28.35 grams.Abbreviation: oz