Milligrams to Grams (mg to g) Converter
1 milligram (mg) = 0.001 grams (g). To convert milligrams to grams, multiply by 0.001: 25 mg × 0.001 = 0.025 g.
Quick facts
- 1 mg = 0.001 g
- 1 g = 1,000 mg
- Formula: g = mg × 0.001
- Quick estimate: multiply by about 0.001
How to convert milligrams to grams
- Take the value in milligrams.
- Multiply it by 0.001 (the number of grams in one milligram).
- Round the result to the precision you need.
Worked example: 25 mg × 0.001 = 0.025 g.
To convert grams back to milligrams, multiply by 1,000, or divide by 0.001.
Source: NIST Special Publication 811 (2008), Appendix B (1 pound = 0.45359237 kg exactly). Tola, seer and maund use the standard values given in their definitions on this page.
Milligrams to Grams conversion table
| Milligrams [mg] | Grams [g] |
|---|---|
| 0.01 mg | 0.00001 g |
| 0.1 mg | 0.0001 g |
| 1 mg | 0.001 g |
| 2 mg | 0.002 g |
| 3 mg | 0.003 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 |
| 1000 mg | 1 g |
mg to g chart from 1 to 100
- 1 mg 0.001 g
- 2 mg 0.002 g
- 3 mg 0.003 g
- 4 mg 0.004 g
- 5 mg 0.005 g
- 6 mg 0.006 g
- 7 mg 0.007 g
- 8 mg 0.008 g
- 9 mg 0.009 g
- 10 mg 0.01 g
- 11 mg 0.011 g
- 12 mg 0.012 g
- 13 mg 0.013 g
- 14 mg 0.014 g
- 15 mg 0.015 g
- 16 mg 0.016 g
- 17 mg 0.017 g
- 18 mg 0.018 g
- 19 mg 0.019 g
- 20 mg 0.02 g
- 25 mg 0.025 g
- 30 mg 0.03 g
- 35 mg 0.035 g
- 40 mg 0.04 g
- 45 mg 0.045 g
- 50 mg 0.05 g
- 55 mg 0.055 g
- 60 mg 0.06 g
- 65 mg 0.065 g
- 70 mg 0.07 g
- 75 mg 0.075 g
- 80 mg 0.08 g
- 85 mg 0.085 g
- 90 mg 0.09 g
- 95 mg 0.095 g
- 100 mg 0.1 g
Grams to Milligrams conversion table
| Grams [g] | Milligrams [mg] |
|---|---|
| 0.001 g | 1 mg |
| 0.01 g | 10 mg |
| 0.1 g | 100 mg |
| 0.5 g | 500 mg |
| 1 g | 1000 mg |
| 2 g | 2000 mg |
| 5 g | 5000 mg |
| 10 g | 10000 mg |
Milligrams vs Grams
| Milligram | Gram | |
|---|---|---|
| Symbol | mg | g |
| Equals | 1 mg = 0.001 g | 1 g = 1,000 mg |
What is a milligram?
One thousandth of a gram. Used for medication dosages and precise lab measurements.
What is a gram?
One thousandth of a kilogram, the SI base unit of mass. Used for food packaging, cooking, and small everyday items.
Frequently asked questions
How many grams are in a milligram?
There are 0.001 grams in 1 milligram (1 mg = 0.001 g).
How many milligrams are in a gram?
There are 1,000 milligrams in 1 gram (1 g = 1000 mg).
How do I convert milligrams to grams?
Multiply the number of milligrams by 0.001. For example, 10 mg × 0.001 = 0.01 g. To convert back, multiply by 1,000.
What is 10 mg in grams?
10 mg = 0.01 g.
What is 100 mg in grams?
100 mg = 0.1 g.
Is the conversion exact?
Yes. The factor comes from the official definitions of both units (NIST Special Publication 811 (2008), Appendix B (1 pound = 0.45359237 kg exactly). Tola, seer and maund use the standard values given in their definitions on this page). Results are shown to up to 10 decimal places; round them to suit your purpose.
Related conversions
Popular weight and mass conversions
- Kilograms to Pounds
- Pounds to Kilograms
- Grams to Ounces
- Ounces to Grams
- Kilograms to Maunds
- Maunds to Kilograms
- Tola to Grams
- Grams to Tola
- Kilograms to Seer
- Seer to Kilograms
- Kilograms to Stone
- Stone to Kilograms
Convert milligrams to other units
- Milligrams to Kilograms
- Milligrams to Metric Tons
- Milligrams to Ounces
- Milligrams to Pounds
- Milligrams to Stone
- Milligrams to US Tons (short tons)
- Milligrams to Tola
- Milligrams to Seer
- Milligrams to Maunds
- Milligrams to Long Tons
Convert other units to grams
- Kilograms to Grams
- Metric Tons to Grams
- Ounces to Grams
- Pounds to Grams
- Stone to Grams
- US Tons (short tons) to Grams
- Tola to Grams
- Seer to Grams
- Maunds to Grams
- Long Tons to Grams
Open the full weight and mass converter with every unit →