Ounces to Milligrams Converter
How to convert ounces to milligrams
milligrams = ounces × 28,349.5231
To convert ounces to milligrams, multiply the number of ounces by 28,349.5231.
1 oz = 28,349.5231 mg
Examples
- Half a pound: 8 oz × 28,349.5231 = 226,796.185 mg
- One pound: 16 oz × 28,349.5231 = 453,592.37 mg
Good to know
This is the avoirdupois ounce (28.349523125 g) used for everyday weights, not the heavier troy ounce (31.1034768 g) used for gold, silver and other precious metals. It is also not the fluid ounce, which measures volume.
Ounces to milligrams conversion table
| Ounces (oz) | Milligrams (mg) |
|---|---|
| 1 oz | 28,349.5231 mg |
| 2 oz | 56,699.0462 mg |
| 3 oz | 85,048.5694 mg |
| 4 oz | 113,398.092 mg |
| 5 oz | 141,747.616 mg |
| 6 oz | 170,097.139 mg |
| 8 oz | 226,796.185 mg |
| 10 oz | 283,495.231 mg |
| 12 oz | 340,194.278 mg |
| 16 oz | 453,592.37 mg |
| 20 oz | 566,990.463 mg |
| 24 oz | 680,388.555 mg |
| 32 oz | 907,184.74 mg |
| 48 oz | 1,360,777.11 mg |
| 64 oz | 1,814,369.48 mg |
| 100 oz | 2,834,952.31 mg |
Unit definitions
- Ounce (oz)
- The avoirdupois ounce is one sixteenth of a pound, exactly 28.349523125 grams. It is used for food, postal items and other light goods in the United States.
- Milligram (mg)
- A milligram is one thousandth of a gram, or one millionth of a kilogram. It is the usual unit for medicine doses and for nutrients listed on food labels.