Convert Gram (g) to Microgram (μg) instantly. Enter any value — result updates live.
Converting Gram to Microgram is a common weight conversion. One gram (g) equals 1,000,000 microgram (μg). Grams are used for food nutrition labels, cooking recipes, and lightweight measurements.
This conversion is commonly needed for medical dosage calculations, grocery shopping abroad, cooking and recipe conversions. Micrograms are used in pharmacology and nutrition for very small dosages.
To put gram in perspective: a US nickel coin (5 g). In microgram, common references include a melatonin supplement (300–500 μg).
A gram was originally defined as the mass of one cubic centimeter of water at 4°C.
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 gram and microgram for:
| Gram (g) | Microgram (μg) |
|---|---|
| 1 g | 1,000,000 μg |
| 2 g | 2,000,000 μg |
| 5 g | 5,000,000 μg |
| 10 g | 10,000,000 μg |
| 15 g | 15,000,000 μg |
| 20 g | 20,000,000 μg |
| 25 g | 25,000,000 μg |
| 30 g | 30,000,000 μg |
| 50 g | 50,000,000 μg |
| 100 g | 100,000,000 μg |
| 200 g | 200,000,000 μg |
| 500 g | 500,000,000 μg |
| 1000 g | 1,000,000,000 μg |