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Convert milligrams to grams

1 milligram equals 0.001 grams. Type any number below — the other side updates instantly.

Milligrams to grams — quick reference

milligramsgrams
1 mg0.001 g
5 mg0.005 g
10 mg0.01 g
25 mg0.025 g
50 mg0.05 g
100 mg0.1 g
250 mg0.25 g
500 mg0.5 g
1000 mg1 g
2500 mg2.5 g
5000 mg5 g
10000 mg10 g

How to convert

Multiply the number of milligrams by 0.001 to get grams. To go the other way, multiply grams by 1000 to get milligrams. The conversion factor is fixed and exact, so you can use this on any value.

About these units

Grams

Definition
A gram (symbol: g) is one-thousandth of a kilogram, the SI base unit of mass. 1 g is roughly the mass of a paper clip.
History
Originally defined as the mass of one cubic centimeter of water at 4°C. The kilogram has since become the base unit, with the gram derived from it.
Current use
Standard for cooking, food labels, medication, jewelry, and small-quantity science worldwide outside the United States.

Frequently asked

How many grams are in 1 milligram?
1 milligram = 0.001 grams.
How do you convert milligrams to grams?
Multiply the number of milligrams by 0.001 to get grams. To go the other way, multiply grams by 1000 to get milligrams. The conversion factor is fixed and exact, so you can use this on any value.
What is 250 milligrams in grams?
250 milligrams = 0.25 grams.
Reverse conversionGrams to milligrams

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