Convert milligram to gram
1 mg = 0.001 g
sig figs
1 mg = 0.001 g
1 mg in every mass unit
| unified atomic mass unit (dalton) | 6.02e+20 u |
| picogram | 1,000,000,000 pg |
| nanogram | 1,000,000 ng |
| microgram | 1,000 μg |
| milligram | 1 mg |
| centigram | 0.1 cg |
| grain | 0.0154 gr |
| metric carat | 0.005 ct |
| gram | 0.001 g |
| pennyweight | 0.000643 dwt |
| dram | 0.000564 dr |
| ounce | 0.0000353 oz |
| troy ounce | 0.0000322 oz t |
| troy pound | 0.00000268 lb t |
| pound | 0.0000022 lb |
| kilogram | 0.000001 kg |
| stone | 1.57e-07 st |
| slug | 6.85e-08 slug |
| US hundredweight | 2.20e-08 cwt |
| UK long hundredweight | 1.97e-08 cwt (UK) |
| quintal | 1.00e-08 q |
| US short ton | 1.10e-09 ton |
| metric tonne | 1.00e-09 t |
| UK long ton | 9.84e-10 long ton |
| kilotonne | 1.00e-12 kt |
| megatonne | 1.00e-15 Mt |
| gigatonne | 1.00e-18 Gt |
| Earth mass | 1.67e-31 Mearth |
| solar mass | 5.03e-37 Msun |
How the conversion works
Multiply by 0.001 to go from milligram to gram, 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? gram to milligram: 1 g = 1,000 mg.
milligram to gram: common values
| 1 mg | 0.001 g |
| 2 mg | 0.002 g |
| 3 mg | 0.003 g |
| 5 mg | 0.005 g |
| 10 mg | 0.01 g |
| 15 mg | 0.015 g |
| 20 mg | 0.02 g |
| 25 mg | 0.025 g |
| 50 mg | 0.05 g |
| 75 mg | 0.075 g |
| 100 mg | 0.1 g |
| 250 mg | 0.25 g |
| 500 mg | 0.5 g |
| 1000 mg | 1 g |