490 mcg = 0.49 mg. To convert micrograms to milligrams, divide by 1,000: 490 ÷ 1,000 = 0.49.
How to convert micrograms to milligrams
mg = mcg × 0.001
- 1 mcg = 0.001 mg (and 1 mg = 1,000 mcg).
- Multiply the amount by the factor: 490 × 0.001 = 0.49.
- Answer: 490 mcg = 0.49 mg.
Shortcut: dividing by 1,000 gives the same result as multiplying by 0.001.
Micrograms to Milligrams table
| Micrograms (mcg) | Milligrams (mg) |
|---|---|
| 485 mcg | 0.485 mg |
| 486 mcg | 0.486 mg |
| 487 mcg | 0.487 mg |
| 488 mcg | 0.488 mg |
| 489 mcg | 0.489 mg |
| 490 mcg | 0.49 mg |
| 491 mcg | 0.491 mg |
| 492 mcg | 0.492 mg |
| 493 mcg | 0.493 mg |
| 494 mcg | 0.494 mg |
| 495 mcg | 0.495 mg |
| mcg | mg |
|---|---|
| 1 mcg | 0.001 mg |
| 5 mcg | 0.005 mg |
| 10 mcg | 0.01 mg |
| 50 mcg | 0.05 mg |
| 100 mcg | 0.1 mg |
| 1,000 mcg | 1 mg |