Milligrams to Micrograms
Convert milligrams (mg) to micrograms (mcg) instantly — with formula and reference table.
mg
mcg
Quick answer: 1 mg = 1000 mcg. To convert milligrams to micrograms, multiply by mg × 1000.
Converting milligrams to micrograms
This converter changes a value in milligrams (mg) into micrograms (mcg). One milligram equals 1000 mcg. One milligram equals exactly 1,000 micrograms. The conversion runs entirely in your browser — enter a value and the result updates instantly, in either direction.
Formula
mcg = mg × 1000
Example
Convert 10 mg to mcg: 10 × 1000 = 10000 mcg.
Milligrams to Micrograms conversion table
| Milligrams (mg) | Micrograms (mcg) |
|---|---|
| 1 mg | 1000 mcg |
| 2 mg | 2000 mcg |
| 3 mg | 3000 mcg |
| 5 mg | 5000 mcg |
| 10 mg | 10000 mcg |
| 20 mg | 20000 mcg |
| 25 mg | 25000 mcg |
| 50 mg | 50000 mcg |
| 100 mg | 100000 mcg |
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How to use this converter
- Enter a value in the milligrams (mg) field.
- Read the converted value in micrograms (mcg) below.
- Type into the mcg field instead to convert in reverse, or use the swap button.
Frequently asked questions
How many micrograms are in a milligram?
1 milligram equals 1,000 micrograms (mcg).
How do I convert 0.5 mg to mcg?
0.5 times 1,000 = 500 mcg.
Is mcg the same as ug?
Yes. mcg and µg (micrograms) are the same unit, written differently to avoid confusion.
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