Ounces to Milligrams

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oz
mg
1 oz = — mg

Quick reference

Ounces (oz)Milligrams (mg)

Formula

Milligrams = ounces × 28349.5

Multiply the ounces value by 28349.5 to get milligrams. To reverse — divide milligrams by 28349.5 to get ounces.

About this conversion

The ounce (oz) is an imperial unit equal to one sixteenth of a pound or approximately 28.35 grams. Learn more →

The milligram (mg) is a metric unit equal to one thousandth of a gram, used in medicine and pharmacology for dosage. Learn more →

Source: NIST International Reference