Grams to Mg Converter

Convert grams to milligrams instantly. Free g to mg converter with quick reference table and formula. 1 gram = 1000 milligrams.

1,000
Milligram (mg)
Input Value
1 g (Gram)
1/1000 of a kilogram. Common for food, cooking, and small items.

How to Convert Gram to Milligram

Simple formula with a worked example

To convert gram (g) to milligram (mg), use this formula:

mg = g × 1000

Example: Convert 5 g to mg

5 g = 5,000 mg

To convert back, use: g = mg ÷ 1000

Gram to Milligram Conversion Table

Quick reference for common gram to milligram conversions

Gram (g)Milligram (mg)
0.001 g1 mg
0.01 g10 mg
0.1 g100 mg
0.5 g500 mg
1 g1,000 mg
2 g2,000 mg
5 g5,000 mg
10 g10,000 mg
50 g50,000 mg
100 g1,00,000 mg

About Gram and Milligram

Understanding these weight units

Gram (g)

1/1000 of a kilogram. Common for food, cooking, and small items.

Milligram (mg)

1/1000 of a gram. Used in medicine and for very small quantities.

When You Need This Conversion

  • medication dosage
  • supplement intake
  • lab measurements
  • chemical formulations

Frequently Asked Questions

Common questions about converting gram to milligram

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