1 mcg to mg: 1 microgram in milligrams
1 mcg is 0.001 milligrams (0.001 mg).
1 mcg in milligrams
0.001 mg
How it is calculated
Formula: mg = mcg × 0.001
- 1 milligram = 1,000 micrograms
- 1 ÷ 1,000 = 0.001 mg
What this means
- The same weight in grams: 0.000001 g.
- Going the other way, 1 milligram is 1,000 micrograms.
- This conversion is exact: 1 microgram = 0.001 milligrams, so there is nothing to round.
Try other numbers
The full mcg to mg converter, filled in with these values.
mcg
1 microgram in milligrams
0.001 mg
How this was calculated
- 1 milligram = 1,000 micrograms
- 1 ÷ 1,000 = 0.001 mg
| mcg | mg |
|---|---|
| 1 mcg | 0.001 mg |
| 5 mcg | 0.005 mg |
| 10 mcg | 0.01 mg |
| 15 mcg | 0.015 mg |
| 20 mcg | 0.02 mg |
| 25 mcg | 0.025 mg |
| 50 mcg | 0.05 mg |
| 100 mcg | 0.1 mg |
| 150 mcg | 0.15 mg |
| 200 mcg | 0.2 mg |
| 250 mcg | 0.25 mg |
| 300 mcg | 0.3 mg |
| 400 mcg | 0.4 mg |
| 500 mcg | 0.5 mg |
| 600 mcg | 0.6 mg |
| 800 mcg | 0.8 mg |
| 1,000 mcg | 1 mg |
| 1,500 mcg | 1.5 mg |
| 2,000 mcg | 2 mg |
| 2,500 mcg | 2.5 mg |
| 5,000 mcg | 5 mg |
| 10,000 mcg | 10 mg |
| mg | mcg |
|---|---|
| 0.025 mg | 25 mcg |
| 0.05 mg | 50 mcg |
| 0.075 mg | 75 mcg |
| 0.1 mg | 100 mcg |
| 0.125 mg | 125 mcg |
| 0.15 mg | 150 mcg |
| 0.2 mg | 200 mcg |
| 0.25 mg | 250 mcg |
| 0.3 mg | 300 mcg |
| 0.4 mg | 400 mcg |
| 0.5 mg | 500 mcg |
| 0.75 mg | 750 mcg |