Convert gram to milligram
1 g = 1,000 mg
sig figs
1 g = 1,000 mg
1 g in every mass unit
| unified atomic mass unit (dalton) | 6.02e+23 u |
| picogram | 1,000,000,000,000 pg |
| nanogram | 1,000,000,000 ng |
| microgram | 1,000,000 μg |
| milligram | 1,000 mg |
| centigram | 100 cg |
| grain | 15.4 gr |
| metric carat | 5 ct |
| gram | 1 g |
| pennyweight | 0.643 dwt |
| dram | 0.564 dr |
| ounce | 0.0353 oz |
| troy ounce | 0.0322 oz t |
| troy pound | 0.00268 lb t |
| pound | 0.0022 lb |
| kilogram | 0.001 kg |
| stone | 0.000157 st |
| slug | 0.0000685 slug |
| US hundredweight | 0.000022 cwt |
| UK long hundredweight | 0.0000197 cwt (UK) |
| quintal | 0.00001 q |
| US short ton | 0.0000011 ton |
| metric tonne | 0.000001 t |
| UK long ton | 9.84e-07 long ton |
| kilotonne | 1.00e-09 kt |
| megatonne | 1.00e-12 Mt |
| gigatonne | 1.00e-15 Gt |
| Earth mass | 1.67e-28 Mearth |
| solar mass | 5.03e-34 Msun |
How the conversion works
Multiply by 1,000 to go from gram 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 gram: 1 mg = 0.001 g.
gram to milligram: common values
| 1 g | 1,000 mg |
| 2 g | 2,000 mg |
| 3 g | 3,000 mg |
| 5 g | 5,000 mg |
| 10 g | 10,000 mg |
| 15 g | 15,000 mg |
| 20 g | 20,000 mg |
| 25 g | 25,000 mg |
| 50 g | 50,000 mg |
| 75 g | 75,000 mg |
| 100 g | 100,000 mg |
| 250 g | 250,000 mg |
| 500 g | 500,000 mg |
| 1000 g | 1,000,000 mg |