Convert milligram to gram

1 mg = 0.001 g

1 mg = 0.001 g
1 mg in every mass unit
microgram1,000 μg
milligram1 mg
gram0.001 g
kilogram0.000001 kg
metric tonne1.00e-09 t
ounce0.0000353 oz
pound0.0000022 lb
stone1.57e-07 st
US short ton1.10e-09 ton
grain0.0154 gr
unified atomic mass unit (dalton)6.02e+20 u
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 mg0.001 g
2 mg0.002 g
3 mg0.003 g
5 mg0.005 g
10 mg0.01 g
15 mg0.015 g
20 mg0.02 g
25 mg0.025 g
50 mg0.05 g
75 mg0.075 g
100 mg0.1 g
250 mg0.25 g
500 mg0.5 g
1000 mg1 g