At One Place

Micrograms to milligrams

1 microgram in milligrams
1 µg = 0.001 mg
mg = µg × 0.001

To convert micrograms to milligrams, multiply by 0.001. The table below gives the values people look up most often, and the converter works for any number.

Micrograms to milligrams table

Common microgram values converted to milligrams.
Micrograms Milligrams
1 µg 0.001
2 µg 0.002
3 µg 0.003
4 µg 0.004
5 µg 0.005
10 µg 0.01
15 µg 0.015
20 µg 0.02
25 µg 0.025
30 µg 0.03
40 µg 0.04
50 µg 0.05
75 µg 0.075
100 µg 0.1
250 µg 0.25
500 µg 0.5
1,000 µg 1

How the conversion works

The relationship is mg = µg × 0.001. Both units measure mass, so the conversion is a fixed factor that never changes.

Common questions

How many milligrams are in one microgram?
One microgram equals 0.001 milligrams. mg = µg × 0.001.
How do you convert micrograms to milligrams?
Use mg = µg × 0.001. So 10 µg is 0.01 mg.
How many micrograms are in one milligram?
One milligram equals 1,000 micrograms, which is the reverse of the conversion above.

Related pages

Sources

  1. Guide for the Use of the International System of Units (SP 811) — NIST (Public domain (US Government))
  2. The International System of Units (SI Brochure) — Bureau International des Poids et Mesures
  3. Calculated on this page — At One Place

How these figures are compiled and checked