Milligrams to Grams Converter
Convert milligrams to grams instantly. Type a value, change either unit, or press swap to go the other way. 1 milligram = 0.001 grams.
1 milligram = 0.001 grams
How to convert milligrams to grams
grams = milligrams × 0.001
To convert milligrams to grams, multiply the value by 0.001. To go back from grams to milligrams, divide by the same number (or multiply by 1,000).
Worked examples
- 50 mg: 50 × 0.001 = 0.05 g
- 100 mg: 100 × 0.001 = 0.1 g
- 250 mg: 250 × 0.001 = 0.25 g
Divide by 1,000, which means moving the decimal point three places to the left. 500 mg is 0.5 g.
Milligrams to Grams conversion table
Milligrams to Grams
| mg | g |
|---|---|
| 1 | 0.001 |
| 10 | 0.01 |
| 50 | 0.05 |
| 100 | 0.1 |
| 250 | 0.25 |
| 500 | 0.5 |
| 750 | 0.75 |
| 1,000 | 1 |
| 2,000 | 2 |
| 5,000 | 5 |
Grams to Milligrams
| g | mg |
|---|---|
| 1 | 1,000 |
| 10 | 10,000 |
| 50 | 50,000 |
| 100 | 100,000 |
| 250 | 250,000 |
| 500 | 500,000 |
| 750 | 750,000 |
| 1,000 | 1,000,000 |
| 2,000 | 2,000,000 |
| 5,000 | 5,000,000 |
Weight equivalents
See how one milligram and one gram compare with every other weight unit on the site.
1 milligram equals
| Unit | Value |
|---|---|
| grams (g) | 0.001 |
| kilograms (kg) | 1 × 10-6 |
| metric tons (tonnes) (t) | 0 |
| ounces (oz) | 0.000035274 |
| pounds (lb) | 2.204623 × 10-6 |
| stones (st) | 1.57473 × 10-7 |
| US tons (short tons) (ton) | 1.102311 × 10-9 |
| long tons (long ton) | 0 |
| carats (ct) | 0.005 |
1 gram equals
| Unit | Value |
|---|---|
| milligrams (mg) | 1,000 |
| kilograms (kg) | 0.001 |
| metric tons (tonnes) (t) | 1 × 10-6 |
| ounces (oz) | 0.03527396 |
| pounds (lb) | 0.002204623 |
| stones (st) | 0.000157473 |
| US tons (short tons) (ton) | 1.102311 × 10-6 |
| long tons (long ton) | 9.842065 × 10-7 |
| carats (ct) | 5 |
When you need to convert milligrams to grams
Medicine doses, vitamins and food additives are usually listed in milligrams, while ingredient weights and scientific measurements often use grams. Converting between them is a routine step when you read a label or measure a powder.
About the units
Milligram (mg)
A milligram is one thousandth of a gram. It is the usual unit for medicine doses and vitamins.
Gram (g)
A gram is one thousandth of a kilogram, about the weight of a paperclip. It is the standard metric unit for food and ingredients.
Frequently asked questions
How do I convert milligrams to grams?
Multiply the number of milligrams by 0.001. For example, 10 milligrams × 0.001 = 0.01 grams.
How many grams are in one milligram?
There are 0.001 grams in one milligram.
How many milligrams are in one gram?
There are 1,000 milligrams in one gram.
How many milligrams are in a gram?
There are exactly 1,000 milligrams in one gram. A standard 500 mg tablet is half a gram, and 2,000 mg is 2 g.
Can I convert other weight units with this tool?
Yes. Use the From and To drop-downs in the converter to choose any weight unit, or press the swap button to reverse the conversion. All calculations use internationally defined conversion factors.