Milligrams to Grams: the quick answer
1 mg = 0.001 g
1 milligram equals 0.001 grams
To convert milligrams to grams, multiply the value by 0.001. To go the other way, multiply grams by 1,000 to get milligrams.
Enter details
1 milligram =
0.001 grams
1 gram =
1,000 milligrams
Formula
g = mg × 0.001
Handy values
100 mg = 0.1 g · 1,000 mg = 1 g · 10,000 mg = 10 g
Conversion at a glance
Formula
Milligrams to Grams
g = mg × 0.001
Grams to Milligrams
mg = g × 1,000
Where
- mg = the weight in milligrams
- g = the weight in grams
Every unit here is defined by its weight in kilograms, so the conversion factor is (kilograms per milligram) ÷ (kilograms per gram).
Milligrams to Grams conversion table
| Milligrams (mg) | Grams (g) |
|---|---|
| 1 mg | 0.001 g |
| 5 mg | 0.005 g |
| 10 mg | 0.01 g |
| 25 mg | 0.025 g |
| 50 mg | 0.05 g |
| 100 mg | 0.1 g |
| 250 mg | 0.25 g |
| 500 mg | 0.5 g |
| 1,000 mg | 1 g |
| 2,500 mg | 2.5 g |
| 5,000 mg | 5 g |
| 10,000 mg | 10 g |
| 100,000 mg | 100 g |
| 1,000,000 mg | 1,000 g |
Worked examples
About these units
Milligram (mg). A milligram is one thousandth of a gram, used for medicine doses and nutrition labels.
Gram (g). The gram is one thousandth of a kilogram, the everyday unit for food, gold and small items.
Frequently asked questions
How many grams are in one milligram?
There are 0.001 grams in one milligram.
How do I convert milligrams to grams?
Multiply the number of milligrams by 0.001. For example, 10 milligrams equal 0.01 grams.
How many milligrams are in one gram?
One gram equals 1,000 milligrams.
How many grams is 1,000 milligrams?
1 gram. Other common values: 100 milligrams = 0.1 grams and 10,000 milligrams = 10 grams.
More weight conversions
From milligrams
mg to kg
mg to lb
mg to oz
mg to st
mg to t
mg to ton (US)
mg to ton (UK)
mg to q
mg to ct
mg to oz t
mg to tola
mg to µg
To grams
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