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Micrograms to Milligrams Converter (µg to mg)

1 µg = 0.001 mg. Type any value to convert micrograms to milligrams.

1 µg = 0.001 mg

Formula: mg = µg × 0.001

Common values
Decimals
In every unit 14 units
Microgram (µg) 1 µg
Milligram (mg) 0.001 mg
Gram (g) 0.000001 g
Decagram (dag) 1 × 10⁻⁷ dag
Kilogram (kg) 1 × 10⁻⁹ kg
Tonne (t) 1 × 10⁻¹² t
Carat (ct) 0.000005 ct
Grain (gr) 0.00001543235835 gr
Ounce (oz) 3.527396195 × 10⁻⁸ oz
Pound (lb) 2.204622622 × 10⁻⁹ lb
Stone (st) 1.574730444 × 10⁻¹⁰ st
US ton (short ton) (US ton) 1.102311311 × 10⁻¹² US ton
UK ton (long ton) (UK ton) 9.842065276 × 10⁻¹³ UK ton
Troy ounce (oz t) 3.215074657 × 10⁻⁸ 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

Micrograms to milligrams table

Formula: mg = µg × 0.001

Microgram (µg)Milligram (mg)
0.1 µg0.0001 mg
0.25 µg0.00025 mg
0.5 µg0.0005 mg
1 µg0.001 mg
2 µg0.002 mg
3 µg0.003 mg
4 µg0.004 mg
5 µg0.005 mg
6 µg0.006 mg
7 µg0.007 mg
8 µg0.008 mg
9 µg0.009 mg
10 µg0.01 mg
12 µg0.012 mg
15 µg0.015 mg
20 µg0.02 mg
25 µg0.025 mg
30 µg0.03 mg
40 µg0.04 mg
50 µg0.05 mg
60 µg0.06 mg
75 µg0.075 mg
100 µg0.1 mg
150 µg0.15 mg
200 µg0.2 mg
250 µg0.25 mg
500 µg0.5 mg
1,000 µg1 mg

How to use: Micrograms to Milligrams

  1. 1 Type the value in micrograms.
  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

Microgram (µg) is a unit of mass (SI); 1 µg = 1 × 10⁻⁹ kg. Milligram (mg) is a unit of mass (SI); 1 mg = 0.000001 kg.

To convert micrograms to milligrams, multiply the value by 0.001 (mg = µg × 0.001). Example: 10 µg = 0.01 mg.

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

Frequently asked questions

How do I convert micrograms to milligrams?

To convert micrograms to milligrams, multiply the value by 0.001: mg = µg × 0.001. For example 10 µg = 0.01 mg.

What is 1 µg in milligrams?

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

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.

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