Convert UnitsFast, accurate unit conversions
Mass

Grams to milligrams Converter

Convert gram to milligram instantly.

Formulamg = g × 1000
Sources and methodology1 g = 1000 mg — exactly. exactly

Quick conversion table

grammilligram
1 g1000 mg
2 g2000 mg
5 g5000 mg
10 g10000 mg
20 g20000 mg
50 g50000 mg
100 g100000 mg
200 g200000 mg

Unit definitions

gram (g)

gram is a unit of Mass. In this converter it is defined against the category base unit as 1 g = 0.001 kg.

milligram (mg)

milligram is a unit of Mass. In this converter it is defined against the category base unit as 1 mg = 0.000001 kg.

Example

10 g = 10000 mg

Sources and methodology

Definitions: BIPM SI Brochure and NIST conversion guidance. Methodology.