Grams to Milligrams Converter
Convert grams to mg.
Result
0
Milligrams
1 Grams = 1000 Milligrams
How to convert Grams to Milligrams?
How many Milligrams are in Grams? The relationship is:
- 1 Gram = 1000 Milligrams
- 1 Milligram = 0.001 Grams
To convert Grams to Milligrams, multiply the value by 1000.
Formula: Milligrams = Grams × 1000
Step-by-Step Calculation
- Take the number of Grams you want to convert (e.g., 2).
- Multiply that value by 1000.
- The result is the value in Milligrams. (Example: 2 × 1000 = 2000 Milligrams).
How to use this converter?
Enter grams and get milligrams instantly—useful for supplement labels, lab work, medical dosing, and precise measurements.
Common Grams to Milligrams Conversions
Quick reference guide for popular gram values.
0.1 g = 100 mg
0.25 g = 250 mg
0.5 g = 500 mg
1 g = 1000 mg
2 g = 2000 mg
5 g = 5000 mg
10 g = 10000 mg
25 g = 25000 mg
50 g = 50000 mg
100 g = 100000 mg
History: Why milligrams?
Milligrams (mg) are used when you need a smaller unit than grams—especially for medicine, supplements, and scientific measurements.
Common Grams to Milligrams Conversions
| Grams Input | Milligrams Result |
|---|---|
| 0.1 g | 100 mg |
| 0.25 g | 250 mg |
| 0.5 g | 500 mg |
| 1 g | 1000 mg |
| 2 g | 2000 mg |
| 5 g | 5000 mg |
| 10 g | 10000 mg |
| 25 g | 25000 mg |
| 50 g | 50000 mg |
| 100 g | 100000 mg |
Frequently Asked Questions
How do I convert grams to milligrams?
Multiply grams by 1000 to get milligrams.
How many milligrams is 1 gram?
1 gram equals 1000 milligrams.
How many milligrams is 0.5 grams?
0.5 grams equals 500 milligrams.
How many grams is 100 mg?
100 mg equals 0.1 grams.
Is this conversion exact?
Yes. Metric units are defined in base-10, so 1 g = 1000 mg exactly.