Grams to Micrograms converter

To convert grams to micrograms, enter the value in the first field. The result in micrograms is calculated automatically using the exact conversion factor.

1 g = 1000000 µg
1 µg = 1 × 10^-6 g

Formula: µg = g × 1000000
g = µg × 1 × 10^-6

Definitions: 1 g = 0.001 kg; 1 µg = 0.001 mg

The gram (g) is one thousandth of a kilogram. It is used for food portions, recipe ingredients, nutrition labels and small items such as letters and jewelry.

The microgram (µg) is one millionth of a gram. It is used for very small doses of medicines and vitamins, such as vitamin B12 and folate, and for trace amounts in laboratory and environmental analysis.

See the conversion table with commonly used values, handy for quick reference or study.