Weight Converter

Convert among kilograms, grams, milligrams, tonnes, pounds, ounces, and stones.

Mass
3
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Related Conversions
1 g to mg 10 g to mg 16 g to mg 100 g to mg 250 g to mg 500 g to mg 750 g to mg 900 g to mg 1,100 g to mg 1,200 g to mg 1,600 g to mg 2,000 g to mg
Reverse Conversions
40 mg to g 125 mg to g 200 mg to g 250 mg to g 1,000 mg to g 1,100 mg to g 1,200 mg to g 1,600 mg to g 2,000 mg to g 2,400 mg to g 10,000 mg to g 20,000 mg to g
More Weight Conversions
1 kg to lb 1 lb to kg 5 kg to lb 5 lb to kg 10 lb to kg 16 lb to kg 25 lb to kg 50 lb to kg 70 kg to lb 100 lb to kg 150 lb to kg 200 lb to kg

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Formula

mg = g × 1000

Example

Example: convert 1000 grams to milligrams.

1000 g = 1000000 mg

Conversion table

grams (g) milligrams (mg)
1 g 1000 mg
2 g 2000 mg
5 g 5000 mg
10 g 10000 mg
20 g 20000 mg
50 g 50000 mg
100 g 100000 mg

Explanation

Grams are used for small masses, food portions, and lab measurements.

How to convert grams to milligrams

  1. Start with the value in grams (g).
  2. Multiply it by 1000.
  3. The result is the measurement in milligrams (mg).

Example: 1000 g → 1000000 mg

Frequently Asked Questions

How much is 1000 grams in milligrams?

1000 grams is about 1000000 milligrams.

How many milligrams is 1 gram?

1 gram equals 1000 milligrams.

How many grams is 1 milligram?

1 milligram equals 0.001 grams.

What is the difference between grams and milligrams?

Both measure mass. The main difference is scale and common usage: {FromPlur} are used for smaller masses (ingredients, food labels, and lab work); {ToPlur} are used for very small amounts (medicine doses and high-precision measurement).

Where are grams and milligrams used?

In practice: {FromPlur} are used for smaller masses (ingredients, food labels, and lab work); {ToPlur} are used for very small amounts (medicine doses and high-precision measurement).

Why does 1 gram equal 1000 milligrams?

Because the units are defined with a fixed relationship. To convert, multiply by that factor.