Ounces to Milligrams Conversion

How many mg in an ounce?

1 Ounce (oz) = 28349.5 milligrams (mg). 1 Ounce = 28.3495 grams (28 g and 349.5 mg).

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► weight conversion

Ounces to milligrams (oz to mg) conversion factor is 28349.5231. To find out how many milligrams in ounces, multiply the ounce value by 28349.5231.

1 Ounce = 28 349.5231 Milligrams

Ounce is an imperial and US Customary mass unit. Troy ounce is used for the measurement of precious metals, gold, silver etc. The abbreviation is "oz".

Milligram is a small unit of mass in the metric system. The abbreviation is "mg".

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To create your own custom conversion table click "Create Table" botton. To change values, you may enter a "Start" value (1, 2.5, 5 etc), select a an "Increment" value (0.01, 5, 100 etc) and select an "Accuracy" value to round the result.
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