Gram to Milligram Converter.
The everyday metric unit for small quantities - cooking, jewelry, and packaging. Converting to milligrams: One thousandth of a gram, common on nutrition labels and in medicine. One gram equals 1,000 mg.
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Conversion formula
Multiply the gram value by 1,000 to get milligrams. (factor: 1,000)
1 g = 1,000 mg
Quick reference table
| g | mg |
|---|---|
| 0.001 g | 1 mg |
| 0.01 g | 10 mg |
| 0.1 g | 100 mg |
| 1 g | 1,000 mg |
| 10 g | 10,000 mg |
Need the reverse? Try ourMilligram to Gram.
Gram to Milligram FAQ
How many milligrams are in one gram?
One gram equals 1,000 mg. Multiply by 1,000 to convert any value.
How do you convert g to mg?
Multiply the gram value by 1,000 to get milligrams.
When would you use grams vs milligrams?
The everyday metric unit for small quantities - cooking, jewelry, and packaging. One thousandth of a gram, common on nutrition labels and in medicine.