Milligrams to Micrograms (mg to µg)
Free online milligram to microgram converter. Type a value, get an instant exact result — plus the formula, a ready-made conversion table, and reverse conversion.
WEIGHT AND MASS CONVERTER — INSTANT RESULT
Formula: multiply the milligram value by 1,000 — i.e. µg = mg × 1,000
Quick check: 1 mg = 1,000 µg
Quick check: 1 mg = 1,000 µg
Milligrams to Micrograms conversion table
| Milligrams (mg) | Micrograms (µg) |
|---|---|
| 1 mg | 1,000 µg |
| 2 mg | 2,000 µg |
| 3 mg | 3,000 µg |
| 4 mg | 4,000 µg |
| 5 mg | 5,000 µg |
| 6 mg | 6,000 µg |
| 7 mg | 7,000 µg |
| 8 mg | 8,000 µg |
| 9 mg | 9,000 µg |
| 10 mg | 10,000 µg |
| 15 mg | 15,000 µg |
| 20 mg | 20,000 µg |
| 25 mg | 25,000 µg |
| 30 mg | 30,000 µg |
| 40 mg | 40,000 µg |
| 50 mg | 50,000 µg |
| 75 mg | 75,000 µg |
| 100 mg | 100,000 µg |
| 250 mg | 250,000 µg |
| 500 mg | 500,000 µg |
| 1,000 mg | 1,000,000 µg |
How to convert milligrams to micrograms
To convert milligrams to micrograms, multiply the amount in milligrams by 1,000. For example, 10 mg = 10,000 µg. To convert in the other direction, divide by the same factor, or use the ⇄ swap button above.
Convert between metric, avoirdupois, troy and apothecary mass units. The kilogram is the SI base unit of mass; pounds and ounces below follow the international avoirdupois definitions (1 lb = 0.45359237 kg exactly).
Frequently asked questions
How many micrograms are in one milligram?
One milligram is exactly 1,000 micrograms.
How do I convert mg to µg?
Multiply the mg value by 1,000 to get µg. The converter at the top of this page does this automatically and works in both directions.
How much is 100 milligrams in micrograms?
100 milligrams equals 100,000 micrograms.