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Milligrams to Micrograms Converter (mg to µg)

1 mg = 1,000 µg. Type any value to convert milligrams to micrograms.

1 mg = 1,000 µg

Formula: µg = mg × 1,000

Common values
Decimals
In every unit 14 units
Microgram (µg) 1,000 µg
Milligram (mg) 1 mg
Gram (g) 0.001 g
Decagram (dag) 0.0001 dag
Kilogram (kg) 0.000001 kg
Tonne (t) 1 × 10⁻⁹ t
Carat (ct) 0.005 ct
Grain (gr) 0.01543235835 gr
Ounce (oz) 0.00003527396195 oz
Pound (lb) 0.000002204622622 lb
Stone (st) 1.574730444 × 10⁻⁷ st
US ton (short ton) (US ton) 1.102311311 × 10⁻⁹ US ton
UK ton (long ton) (UK ton) 9.842065276 × 10⁻¹⁰ UK ton
Troy ounce (oz t) 0.00003215074657 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

Milligrams to micrograms table

Formula: µg = mg × 1,000

Milligram (mg)Microgram (µg)
0.1 mg100 µg
0.25 mg250 µg
0.5 mg500 µg
1 mg1,000 µg
2 mg2,000 µg
3 mg3,000 µg
4 mg4,000 µg
5 mg5,000 µg
6 mg6,000 µg
7 mg7,000 µg
8 mg8,000 µg
9 mg9,000 µg
10 mg10,000 µg
12 mg12,000 µg
15 mg15,000 µg
20 mg20,000 µg
25 mg25,000 µg
30 mg30,000 µg
40 mg40,000 µg
50 mg50,000 µg
60 mg60,000 µg
75 mg75,000 µg
100 mg100,000 µg
150 mg150,000 µg
200 mg200,000 µg
250 mg250,000 µg
500 mg500,000 µg
1,000 mg1,000,000 µg

How to use: Milligrams to Micrograms

  1. 1 Type the value in milligrams.
  2. 2 The result in micrograms appears at once – or type in the micrograms 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

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

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

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

Frequently asked questions

How do I convert milligrams to micrograms?

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

What is 1 mg in micrograms?

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

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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