Convert Ounces to Milligrams
How many milligrams are in an ounce? Easy oz to mg conversion.From
To
swap units ↺
1 Ounce ≈
28,349.523 Milligrams
result rounded
Decimal places
Ounces
An ounce is a unit of weight equal to 1/16th of a pound or about 28.35 grams.Abbreviation: oz
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