How to convert milligrams to micrograms
A milligram is equal to 1,000 micrograms. To convert milligrams to micrograms, multiply the milligram value by 1,000.
Micrograms = Milligrams × 1,000 Example: 1 mg × 1,000 = 1,000 mcg Milligrams to micrograms decimal shortcut
Because milligrams and micrograms are metric units, you can convert mg to mcg by moving the decimal point three places to the right.
- 0.1 mg → 100 mcg
- 0.5 mg → 500 mcg
- 1 mg → 1,000 mcg
- 2.5 mg → 2,500 mcg
- 5 mg → 5,000 mcg
Common milligrams to micrograms conversions
| Milligrams (mg) | Micrograms (mcg) |
|---|---|
| 0.001 mg | 1 mcg |
| 0.005 mg | 5 mcg |
| 0.01 mg | 10 mcg |
| 0.025 mg | 25 mcg |
| 0.05 mg | 50 mcg |
| 0.1 mg | 100 mcg |
| 0.25 mg | 250 mcg |
| 0.5 mg | 500 mcg |
| 0.75 mg | 750 mcg |
| 1 mg | 1,000 mcg |
| 2 mg | 2,000 mcg |
| 2.5 mg | 2,500 mcg |
| 5 mg | 5,000 mcg |
| 10 mg | 10,000 mcg |
Common milligrams to micrograms examples
0.1 mg to mcg: 0.1 × 1,000 = 100 mcg.
0.5 mg to mcg: 0.5 × 1,000 = 500 mcg.
1 mg to mcg: 1 × 1,000 = 1,000 mcg.
2.5 mg to mcg: 2.5 × 1,000 = 2,500 mcg.
5 mg to mcg: 5 × 1,000 = 5,000 mcg.
mcg vs µg
mcg and µg represent the same unit: the microgram. The prefix micro- means one-millionth of a gram. The abbreviation mcg is commonly used in healthcare and product labeling.
For the reverse conversion, use our Micrograms to Milligrams Converter. For larger metric mass units, use our Milligrams to Grams Converter.
Frequently asked questions
How many mcg is 1 mg?
1 milligram is exactly equal to 1,000 micrograms.
How do I convert mg to mcg?
Multiply the milligram value by 1,000. For example, 2 mg × 1,000 = 2,000 mcg.
How many mcg is 0.5 mg?
0.5 milligrams is exactly equal to 500 micrograms.
How many mcg is 5 mg?
5 milligrams is exactly equal to 5,000 micrograms.
Is mcg the same as µg?
Yes. mcg and µg represent the same unit, the microgram.
Convert micrograms to milligrams
Need to convert in the opposite direction? Use our Micrograms to Milligrams converter to convert micrograms into milligrams.