Weight Converter

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

Mass
3
Printable Chart
Related Conversions
2 mg to g 25 mg to g 30 mg to g 50 mg to g 75 mg to g 100 mg to g 125 mg to g 250 mg to g 352 mg to g 512 mg to g 750 mg to g 3,200 mg to g
Reverse Conversions
10 g to mg 16 g to mg 25 g to mg 40 g to mg 75 g to mg 200 g to mg 384 g to mg 512 g to mg 750 g to mg 768 g to mg 1,000 g to mg 1,280 g to mg
More Weight Conversions
1 kg to lb 1 lb to kg 5 kg to g 5 kg to lb 5 lb to kg 10 lb to kg 30 kg to g 50 lb to kg 70 kg to lb 100 kg to g 100 lb to kg 200 lb to kg

Trending Now

Days Until New Year FIFA World Cup 2026 5 gallons to liters Days Until Christmas 350 °F to °C Days Until Age Calculator 2.4 GHz to MHz Business Days 200 pounds to kg

Recent Tools

Popular Conversions

Kilograms to Pounds Pounds to Kilograms Grams to Ounces Ounces to Grams Kilograms to Grams Grams to Kilograms

Common Benchmarks

Microwave oven 35 lb
Soccer ball 0.95 lb
Car tire 25 lb
Bowling ball 16 lb
Road bike frame 2 lb
Laptop 4 lb

Formula

g = mg × 0.001

Example

Example: convert 320 milligrams to grams.

320 mg = 0.32 g

Conversion table

milligrams (mg) grams (g)
1 mg 0.001 g
2 mg 0.002 g
5 mg 0.005 g
10 mg 0.01 g
20 mg 0.02 g
50 mg 0.05 g
100 mg 0.1 g

Explanation

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

How to convert milligrams to grams

  1. Start with the value in milligrams (mg).
  2. Multiply it by 0.001.
  3. The result is the measurement in grams (g).

Example: 320 mg → 0.32 g

Frequently Asked Questions

How much is 320 milligrams in grams?

320 milligrams equals 0.32 grams.

How many grams is 1 milligram?

1 milligram equals 0.001 grams.

How many milligrams is 1 gram?

1 gram equals 1000 milligrams.

What is the difference between milligrams and grams?

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

Where are milligrams and grams used?

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

Why does 1 milligram equal 0.001 grams?

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