Ounce to Milligram Converter.
The avoirdupois ounce - standard for US food labels, recipes, and postal weights. Converting to milligrams: One thousandth of a gram, common on nutrition labels and in medicine. One ounce equals 28,349.523125 mg.
Result
-
Recent
Favorites
All units
Conversion formula
Multiply the ounce value by 28,349.52313 to get milligrams. (factor: 28,349.523125)
1 oz = 28,349.523125 mg
Quick reference table
| oz | mg |
|---|---|
| 0.001 oz | 28.349523125 mg |
| 0.01 oz | 283.49523125 mg |
| 0.1 oz | 2,834.9523125 mg |
| 1 oz | 28,349.523125 mg |
| 10 oz | 283,495.23125 mg |
Need the reverse? Try ourMilligram to Ounce.
Ounce to Milligram FAQ
How many milligrams are in one ounce?
One ounce equals 28,349.523125 mg. Multiply by 28,349.52313 to convert any value.
How do you convert oz to mg?
Multiply the ounce value by 28,349.52313 to get milligrams.
When would you use ounces vs milligrams?
The avoirdupois ounce - standard for US food labels, recipes, and postal weights. One thousandth of a gram, common on nutrition labels and in medicine.