Convert Milligram (mg) to Microgram (μg) instantly. Enter any value — result updates live.
Converting Milligram to Microgram is a common weight conversion. One milligram (mg) equals 1,000 microgram (μg). Milligrams are used in pharmaceuticals, nutrition, and chemical measurements.
This conversion is commonly needed for shipping and postage calculations, medical dosage calculations, grocery shopping abroad. Micrograms are used in pharmacology and nutrition for very small dosages.
To put milligram in perspective: a daily caffeine limit (about 400 mg). In microgram, common references include a daily vitamin D recommendation (15–20 μg).
Milligrams are precise enough that pharmaceutical dosing regulations often require manufacturing tolerances within a few milligrams to ensure medication safety.
The microgram is a thousand times smaller than a milligram — vitamin B12 and folic acid are commonly dosed in micrograms because the body needs vanishingly small amounts.
People frequently convert between milligram and microgram for:
| Milligram (mg) | Microgram (μg) |
|---|---|
| 1 mg | 1,000 μg |
| 2 mg | 2,000 μg |
| 5 mg | 5,000 μg |
| 10 mg | 10,000 μg |
| 15 mg | 15,000 μg |
| 20 mg | 20,000 μg |
| 25 mg | 25,000 μg |
| 30 mg | 30,000 μg |
| 50 mg | 50,000 μg |
| 100 mg | 100,000 μg |
| 200 mg | 200,000 μg |
| 500 mg | 500,000 μg |
| 1000 mg | 1,000,000 μg |