Convert Milligrams to Grams

Enter the weight in milligrams below to get the value converted to grams.

SWAP UNITS
Results in Grams:
Loading content.
1 mg = 0.001 g
Do you want to convert grams to milligrams?

How to Convert Milligrams to Grams

conversion scale showing milligrams and equivalent grams weight values

To convert a milligram measurement to a gram measurement, multiply the weight by the conversion ratio. One milligram is equal to 0.001 grams, so use this simple formula to convert:

grams = milligrams × 0.001

The weight in grams is equal to the milligrams multiplied by 0.001.

For example, here's how to convert 5 milligrams to grams using the formula above.
5 mg = (5 × 0.001) = 0.005 g

Milligrams and grams are both units used to measure weight. Keep reading to learn more about each unit of measure.

Milligrams

The milligram is the mass equal to 1/1,000 of a gram, or 0.0154 grains.

The milligram, or milligramme, is an SI unit of weight in the metric system. In the metric system, "milli" is the prefix for 10-3. Milligrams can be abbreviated as mg, for example 1 milligram can be written as 1 mg.

Grams

A gram is the mass/weight equal to 1/1,000 of a kilogram, and is roughly equal to the mass of one cubic centimeter of water.

The gram, or gramme, is an SI unit of weight in the metric system. Grams can be abbreviated as g, for example 1 gram can be written as 1 g.

Milligram Measurements and Equivalent Gram Conversions

Common milligram values converted to the equivalent gram value
Milligrams Grams
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
21 mg 0.021 g
22 mg 0.022 g
23 mg 0.023 g
24 mg 0.024 g
25 mg 0.025 g
26 mg 0.026 g
27 mg 0.027 g
28 mg 0.028 g
29 mg 0.029 g
30 mg 0.03 g
31 mg 0.031 g
32 mg 0.032 g
33 mg 0.033 g
34 mg 0.034 g
35 mg 0.035 g
36 mg 0.036 g
37 mg 0.037 g
38 mg 0.038 g
39 mg 0.039 g
40 mg 0.04 g

More Milligram Weight Conversions

US Customary & Imperial Units
Convert to Tons
1 mg is equal to 1.1023E-9 tons
Convert to Pounds
1 mg is equal to 2.2046E-6 pounds
Convert to Ounces
1 mg is equal to 3.5274E-5 ounces
SI Units
Convert to Metric Tons
1 mg is equal to 1.0E-9 metric tons
Convert to Kilograms
1 mg is equal to 1.0E-6 kilograms
Other Units
Convert to Long Tons
1 mg is equal to 9.8421E-10 long tons
Convert to Carats
1 mg is equal to 0.005 carats