Conversion

Milligrams to Grams Converter

1 milligram = 0.001 g. Enter any value to convert milligrams (mg) to grams (g), or use the table below for common values.

Results

1 mg =0.001 gmilligrams → grams
1 mg0.001 g
1 g1,000 mg
Formula
g = mg × 0.001
1 mg in other units
1 mg in other units
UnitValue
grams (g)0.001
kilograms (kg)0.000001
metric tons (t)1E-9
ounces (oz)0.00003527396195
pounds (lb)0.000002204622622
stone (st)0.0000001574730444

Formula

g = mg × 0.001

Example: 10 mg = 0.01 g. To convert the other way, use mg = g × 1,000.

Milligrams to Grams conversion table

Milligrams (mg)Grams (g)
1 mg0.001 g
2 mg0.002 g
3 mg0.003 g
4 mg0.004 g
5 mg0.005 g
6 mg0.006 g
7 mg0.007 g
8 mg0.008 g
9 mg0.009 g
10 mg0.01 g
15 mg0.015 g
20 mg0.02 g
25 mg0.025 g
30 mg0.03 g
40 mg0.04 g
50 mg0.05 g
75 mg0.075 g
100 mg0.1 g
250 mg0.25 g
500 mg0.5 g
1,000 mg1 g

About milligrams and grams

The milligram is one thousandth of a gram, typically used for medicine doses, vitamins and nutrition labels.

The gram is one thousandth of a kilogram, used for food, cooking and postage.

Other Weight conversions

Frequently asked questions

How do I convert milligrams to grams?

Use the formula g = mg × 0.001. For example, 10 mg = 0.01 g.

What is 1 milligram in grams?

1 mg = 0.001 g.

How do I convert grams back to milligrams?

Use mg = g × 1,000. 1 g = 1,000 mg.