Convert ounce to milligram
1 oz = 28,349.52313 mg
1 oz = 28,350 mg
1 oz in every mass unit
| unified atomic mass unit (dalton) | 1.7072e+25 u |
| picogram | 28,350,000,000,000 pg |
| nanogram | 28,350,000,000 ng |
| microgram | 28,350,000 μg |
| milligram | 28,350 mg |
| centigram | 2,835 cg |
| grain | 437.5 gr |
| metric carat | 141.75 ct |
| gram | 28.35 g |
| pennyweight | 18.229 dwt |
| dram | 16 dr |
| ounce | 1 oz |
| troy ounce | 0.91146 oz t |
| troy pound | 0.075955 lb t |
| pound | 0.0625 lb |
| kilogram | 0.02835 kg |
| stone | 0.0044643 st |
| slug | 0.0019426 slug |
| US hundredweight | 0.000625 cwt |
| UK long hundredweight | 0.00055804 cwt (UK) |
| quintal | 0.0002835 q |
| US short ton | 0.00003125 ton |
| metric tonne | 0.00002835 t |
| UK long ton | 0.000027902 long ton |
| kilotonne | 2.8350e-08 kt |
| megatonne | 2.8350e-11 Mt |
| gigatonne | 2.8350e-14 Gt |
| Earth mass | 4.7469e-27 Mearth |
| solar mass | 1.4257e-32 Msun |
How the conversion works
Multiply by 28,349.52313 to go from ounce to milligram, or divide by it to go back. Every conversion on this site routes through the SI value (kg) rather than a table of pairwise factors, so a round-trip returns exactly what you started with.
Going the other way? milligram to ounce — 1 mg = 0.00003527396195 oz.
ounce to milligram — common values
| 1 oz | 28,349.523 mg |
| 2 oz | 56,699.046 mg |
| 3 oz | 85,048.569 mg |
| 5 oz | 141,747.62 mg |
| 10 oz | 283,495.23 mg |
| 15 oz | 425,242.85 mg |
| 20 oz | 566,990.46 mg |
| 25 oz | 708,738.08 mg |
| 50 oz | 1,417,476.2 mg |
| 75 oz | 2,126,214.2 mg |
| 100 oz | 2,834,952.3 mg |
| 250 oz | 7,087,380.8 mg |
| 500 oz | 14,174,762 mg |
| 1000 oz | 28,349,523 mg |