Convert ounces to milligrams

Free online converter from ounces to milligrams. Type a value to get an instant result, check the formula and use the quick reference table below.

ounces (oz)

milligrams (mg)

1 oz = 28349.5 mg

Formula: mg = oz × 28349.5

Conversion table

ounces (oz)	milligrams (mg)
1	28349.5
2	56699
5	141748
10	283495
20	566990
50	1417480
100	2834950
250	7087380
500	14174800
1000	28349500

Popular values

2 oz → mg 5 oz → mg 10 oz → mg 15 oz → mg 20 oz → mg 25 oz → mg 30 oz → mg 40 oz → mg 50 oz → mg 75 oz → mg 100 oz → mg 150 oz → mg 200 oz → mg 250 oz → mg 500 oz → mg 1000 oz → mg

Frequently asked questions

How many mg are in 1 oz?

1 oz = 28349.5 mg.

How do I convert ounces to milligrams?

Multiply the value in ounces by 28349.5 to get milligrams.

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