Skip to content
UUTOOLS.NET

Theme

Colours

Grams to Milligrams Converter

1 g = 1,000 mg. Type any value to convert grams to milligrams.

1 g = 1,000 mg

Formula: mg = g × 1,000

Common values
Decimals
In every unit 14 units
Microgram (µg) 1,000,000 µg
Milligram (mg) 1,000 mg
Gram (g) 1 g
Decagram (dag) 0.1 dag
Kilogram (kg) 0.001 kg
Tonne (t) 0.000001 t
Carat (ct) 5 ct
Grain (gr) 15.43235835 gr
Ounce (oz) 0.03527396195 oz
Pound (lb) 0.002204622622 lb
Stone (st) 0.0001574730444 st
US ton (short ton) (US ton) 0.000001102311311 US ton
UK ton (long ton) (UK ton) 9.842065276 × 10⁻⁷ UK ton
Troy ounce (oz t) 0.03215074657 oz t

Convert on our server?

If you continue, the file is uploaded over an encrypted connection and converted on our server. You can keep using the site meanwhile. The original is deleted as soon as it is converted; the result is kept for 6 hours so you can download it, and you can delete it at any time. Files are never shared or used for anything else.

Calculated in your browser – nothing you type is sent anywhere. Privacy details

Grams to milligrams table

Formula: mg = g × 1,000

Gram (g)Milligram (mg)
0.1 g100 mg
0.25 g250 mg
0.5 g500 mg
1 g1,000 mg
2 g2,000 mg
3 g3,000 mg
4 g4,000 mg
5 g5,000 mg
6 g6,000 mg
7 g7,000 mg
8 g8,000 mg
9 g9,000 mg
10 g10,000 mg
12 g12,000 mg
15 g15,000 mg
20 g20,000 mg
25 g25,000 mg
30 g30,000 mg
40 g40,000 mg
50 g50,000 mg
60 g60,000 mg
75 g75,000 mg
100 g100,000 mg
150 g150,000 mg
200 g200,000 mg
250 g250,000 mg
500 g500,000 mg
1,000 g1,000,000 mg

How to use: Grams to Milligrams

  1. 1 Type the value in grams.
  2. 2 The result in milligrams appears at once – or type in the milligrams field to convert back.
  3. 3 Pick a common value, round to fewer decimals or swap the units with one click.
  4. 4 Copy the result, or open “In every unit” to see the value in all units of mass.

About this tool

Gram (g) is a unit of mass (SI); 1 g = 0.001 kg. Milligram (mg) is a unit of mass (SI); 1 mg = 0.000001 kg.

To convert grams to milligrams, multiply the value by 1,000 (mg = g × 1,000). Example: 10 g = 10,000 mg.

Calculated in your browser – nothing you type is sent anywhere.

Frequently asked questions

How do I convert grams to milligrams?

To convert grams to milligrams, multiply the value by 1,000: mg = g × 1,000. For example 10 g = 10,000 mg.

What is 1 g in milligrams?

1 g = 1,000 mg. The other way round, 1 mg = 0.001 g.

How exact is the result?

The converter uses the official definitions of both units and shows up to 10 significant digits; choose 0–6 decimals to round. Both units are defined exactly in terms of each other, so the factor itself is exact.

Can I convert other units of mass here?

Yes – choose any of the 14 units of mass in the From and To lists, or switch to another measurement at the top.

Related tools