438 mcg = 0.438 mg. To convert micrograms to milligrams, divide by 1,000: 438 ÷ 1,000 = 0.438.
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: 438 × 0.001 = 0.438.
- Answer: 438 mcg = 0.438 mg.
Shortcut: dividing by 1,000 gives the same result as multiplying by 0.001.
Micrograms to Milligrams table
| Micrograms (mcg) | Milligrams (mg) |
|---|---|
| 433 mcg | 0.433 mg |
| 434 mcg | 0.434 mg |
| 435 mcg | 0.435 mg |
| 436 mcg | 0.436 mg |
| 437 mcg | 0.437 mg |
| 438 mcg | 0.438 mg |
| 439 mcg | 0.439 mg |
| 440 mcg | 0.44 mg |
| 441 mcg | 0.441 mg |
| 442 mcg | 0.442 mg |
| 443 mcg | 0.443 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 |