Gram to Microgram Converter
Weight · unit-converter
Convert Gram to Microgram with a fixed input and output unit, step-by-step formula line, and reference tables. All calculations use gram-based factors (international avoirdupois pound and metric definitions). The full Weight Converter also includes carat, grain, and US/UK hundredweight.
Calculator
From: Gram (g)
To: Microgram (ug)
About Gram
The gram is one thousandth of a kilogram. Recipes, lab work, and small masses typically use grams.
About Microgram
The microgram is one millionth of a gram. It appears in pharmacology and trace analysis.
How to convert grams to micrograms
1 gram is equal to 1000000 microgram:
1 g = (1 g ÷ 0.000001 g) ug = 1000000 ug
Each gram is defined as 1 g and each microgram as 0.000001 g, so one g equals 1 ÷ 0.000001 ug = 1000000 ug.
Let w(g) be the numeric value of the same mass measured in Gram (g), and w(ug) the value in Microgram (ug). Then:
w(ug) = w(g) × (1 / 0.000001)
Equivalently, divide by how many g fit into one ug (grams per ug divided by grams per g):
w(ug) = w(g) ÷ 0.000001
Or: microgram = gram ÷ 0.000001
Examples
Example #1: Convert 20 g to microgram
20 g = 20 g × (1/0.000001) ug = 20000000 ug
20 g = 20 g ÷ 0.000001 = 20000000 ug
Example #2: Convert 50 g to microgram
50 g = 50 g × (1/0.000001) ug = 50000000 ug
50 g = 50 g ÷ 0.000001 = 50000000 ug
Summary
To convert Gram to Microgram, multiply the value in g by the ratio of grams per g divided by grams per ug. Equivalently: value_ug = value_g × (1 / 0.000001). Numerically, 1 g equals 1000000 ug.
Relationship context
Both units are metric (SI) and tied to the gram via the kilogram. Conversions use exact ratios from their gram definitions. The factor from Gram to Microgram is 1.000000e+6 (1 g = 1000000 ug).
Conversion tables
| Gram (g) | Microgram (ug) |
|---|---|
| 0.1 | 100,000 |
| 1 | 1,000,000 |
| 2 | 2,000,000 |
| 3 | 3,000,000 |
| 4 | 4,000,000 |
| 5 | 5,000,000 |
| 6 | 6,000,000 |
| 7 | 7,000,000 |
| 8 | 8,000,000 |
| 9 | 9,000,000 |
| Gram (g) | Microgram (ug) |
|---|---|
| 10 | 10,000,000 |
| 20 | 20,000,000 |
| 30 | 30,000,000 |
| 40 | 40,000,000 |
| 50 | 50,000,000 |
| 60 | 60,000,000 |
| 70 | 70,000,000 |
| 80 | 80,000,000 |
| 90 | 90,000,000 |
| 100 | 100,000,000 |