In 1 micrograms there are 0.00000100000 grams. Meanwhile in 1 grams there are 1,000,000 micrograms. Keep reading to learn more about each unit of measure and how they are calculated. Or just use the Grams to Micrograms calculator above to convert any number.
* Values rounded to 6 decimal places for readability
To convert micrograms (µg) to grams (g), use this rule:
grams = micrograms ÷ 1,000,000
Tip: Moving from µg to g makes the number smaller because grams are a larger unit.
There are 1,000,000 micrograms (mcg) in 1 gram (g). Micro means one-millionth, so micrograms are much smaller than grams.
Use this simple formula:
grams = micrograms ÷ 1,000,000
You move the decimal point 6 places to the left.
Multiply grams by one million:
micrograms = grams × 1,000,000
You move the decimal point 6 places to the right.
1 mcg = 0.000001 g
That’s one-millionth of a gram.
100 mcg = 0.0001 g
Divide 100 by 1,000,000 to get grams.
500 mcg = 0.0005 g
This is a common amount shown on supplement labels.
1,000 mcg = 0.001 g
This equals one-thousandth of a gram.
10,000 mcg = 0.01 g
That’s one-hundredth of a gram.
250,000 mcg = 0.25 g
A quarter of a gram.
1,000,000 mcg = 1 g
This is the key reference point for conversions.
Micrograms often show small amounts, like vitamins, hormones, and some medicine doses. Grams work better for larger weights, like food items and powders.
Yes. mcg and µg both mean micrograms. Some labels use mcg because it’s easier to type and read.
It depends on your use. Many conversions need 6 decimal places because micrograms are so small. For example, 25 mcg = 0.000025 g. Keep enough digits to match the precision you need.
Remember this anchor: 1 g = 1,000,000 mcg.
If the microgram number is much smaller than 1,000,000, the gram value will be less than 1.
You can, but it’s not common. Micrograms are usually too small for kitchen scales to measure. Grams and milligrams (mg) are more practical for food and spices.
They’re all metric units of mass:
The Calculate Box tool to convert micrograms to grams uses the open source script Convert.js to convert units of measurement. To use this tool, simply type a micrograms value in the box and have it instantly converted to grams.