Convert grams to mg
1 g = 1,000 mg
1 mg = 0.001 g
Loading converter…
Runs entirely in your browser. Nothing you enter is sent to a server.
How to convert grams to mg
Multiply the value in grams by 1,000 to get mg. As a formula: mg = g × 1,000
Good to know
Multiply grams by 1,000 for milligrams. Nutrition labels give sodium in mg and salt in g; 1 g of sodium is about 2.5 g of salt, which is a chemistry ratio, not a unit conversion.
grams to mg conversion table
| grams (g) | mg (mg) |
|---|---|
| 0.5 g | 500 mg |
| 1 g | 1,000 mg |
| 2 g | 2,000 mg |
| 2.5 g | 2,500 mg |
| 3 g | 3,000 mg |
| 4 g | 4,000 mg |
| 5 g | 5,000 mg |
| 6 g | 6,000 mg |
| 8 g | 8,000 mg |
| 10 g | 10,000 mg |
| 12 g | 12,000 mg |
| 15 g | 15,000 mg |
| 20 g | 20,000 mg |
| 25 g | 25,000 mg |
| 30 g | 30,000 mg |
| 50 g | 50,000 mg |
| 75 g | 75,000 mg |
| 100 g | 100,000 mg |
| 250 g | 250,000 mg |
| 500 g | 500,000 mg |
| 1,000 g | 1,000,000 mg |
Related conversions
- mg to grams ⇄
- grams to ounces
- ounces to grams
- kg to pounds
- pounds to kg
- stones to kg
- ounces to pounds
- pounds to ounces
- mg to mcg
- mcg to mg
Need other units? The full Weight Converter converts between every unit it supports, and the Unit Converters page lists the rest.
grams to mg — questions
How many mg are in 1 g?
1 g = 1,000 mg. Multiply the value in grams by 1,000 to get mg.
How do I convert grams to mg?
Multiply the value in grams by 1,000. For example, 0.5 g × 1,000 = 500 mg.
What is 0.5 g in mg?
0.5 g = 500 mg.
What is 2.5 g in mg?
2.5 g = 2,500 mg.
What is 5 g in mg?
5 g = 5,000 mg.