Convert Grams to Micrograms
Convert Grams (g) to Micrograms (µg) instantly and accurately.
Conversion Formula
µg = g × 1000000
About Grams
The gram (g) is the basic metric unit of mass, equal to one thousandth of a kilogram. It is universally used in cooking, nutrition, postal services, and scientific measurement. Almost all food packaging worldwide shows nutritional information per 100 g. A US nickel coin weighs exactly 5 g, a teaspoon of sugar about 4 g, and a standard paperclip approximately 1 g. In chemistry, the gram is central to molar mass: one mole of carbon-12 atoms weighs exactly 12 g. Postal rates are typically scaled per gram or per 100 g.
About Micrograms
A microgram (µg or mcg) is one millionth of a gram (10⁻⁶ g). It is the standard dosing unit for potent medications and micronutrients: vitamin B12 recommended daily intake is 2.4 µg, folic acid supplements are 400 µg, and levothyroxine (thyroid medication) doses are typically 25-200 µg. Air quality standards measure fine particulate matter (PM2.5) in micrograms per cubic meter - the WHO guideline is 15 µg/m³ annual mean. A grain of sand weighs about 50-100 micrograms, and a single snowflake approximately 3 micrograms.
Quick Reference Table
| Grams (g) | Micrograms (µg) |
|---|---|
| 1 g | 1000000 µg |
| 2 g | 2000000 µg |
| 5 g | 5000000 µg |
| 10 g | 10000000 µg |
| 25 g | 25000000 µg |
| 50 g | 50000000 µg |
| 100 g | 100000000 µg |