Milligrams To Grams

1 milligram = 0.001 grams. Multiply milligrams by 0.001 to get grams; divide grams by 0.001 to go back.

0.001
Grams → milligrams Formula: g = mg ÷ 1,000
Quick: 1 mg 5 mg 10 mg 20 mg 50 mg 100 mg

milligrams to grams conversion table

milligramsGrams
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
milligramsGrams
9 mg 0.009 g
10 mg 0.01 g
20 mg 0.02 g
50 mg 0.05 g
100 mg 0.1 g
500 mg 0.5 g
1,000 mg 1 g

How to convert milligrams to grams

Step 1

Take the value in milligrams.

1,000 mg

Step 2

Divide by 1,000.

1,000 ÷ 1,000

Step 3

Round to the precision you need.

= 1 g

The milligram and the g are both defined in terms of the metre and the kilogram, so this factor is exact, not an approximation.

Table of Contents

What is the math for mg to g?

To convert milligrams to grams, divide the value by 1,000. 1,000 mg = 1 g.

Weight Scale Context

Milligrams are used for extremely light objects, while grams are the standard for everyday small items like office supplies or ingredients.

What is a milligram?

A milligram (abbreviated as "mg") is a unit of mass in the metric system, equal to one-thousandth of a gram or 0.001 grams. It is commonly used to measure small quantities such as medicine dosages or nutritional values.

Common milligrams to grams conversions

0.1 mg → 0.0001 g 0.2 mg → 0.0002 g 0.25 mg → 0.00025 g 0.3 mg → 0.0003 g 0.4 mg → 0.0004 g 0.5 mg → 0.0005 g 0.6 mg → 0.0006 g 0.7 mg → 0.0007 g 0.75 mg → 0.00075 g 0.8 mg → 0.0008 g 0.9 mg → 0.0009 g 1 mg → 0.001 g 1.5 mg → 0.0015 g 2 mg → 0.002 g 2.5 mg → 0.0025 g 3 mg → 0.003 g 3.5 mg → 0.0035 g 4 mg → 0.004 g 4.5 mg → 0.0045 g 5 mg → 0.005 g 5.5 mg → 0.0055 g 6 mg → 0.006 g 6.4 mg → 0.0064 g 6.5 mg → 0.0065 g

These are the values people actually search for. Any other number works in the converter above; only these pages are listed for search engines.

Frequently asked questions

How many grams are in a milligram?
There are 0.001 grams in one milligram. Going the other way, one g is 1,000 milligrams.
How do I convert milligrams to grams?
Divide the number of milligrams by 1,000. For example, 10 mg ÷ 1,000 = 0.01 g.
What is 5 milligrams in grams?
5 milligrams is 0.005 grams.
What is 100 milligrams in grams?
100 milligrams is 0.1 grams.
Is the milligram to g factor exact?
Yes. Both units are defined by international agreement in terms of the metre and the kilogram, so 0.001 is an exact factor and any error comes only from rounding the result.

Related converters

milligrams → kg1 mg = 0.000001 kg milligrams → Lbs1 mg = 0.0000022 lb milligrams → Ounces1 mg = 0.00003527 oz milligrams → Grams1 mg = 0.001 g milligrams → Stones1 mg = 0.00000016 st
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