Q:

# What is the difference between mcg and mg?

A:

A milligram, abbreviated as mg, is a metric unit of measure that is equal to 1/1000th (one one thousandth) of a gram, while a microgram, abbreviated mcg, is a metric unit of measure that is equal to 1/1000000th (one one millionth) of a gram. One microgram is equal to 0.0010000 milligrams.

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Though they carry different values, micrograms and milligrams have similar characteristics. Both micrograms and milligrams can be used to measure both weight and mass. Micrograms are a common unit of measurement in the medical field in the United States even though the U.S. typically doesn't use the metric system.

## Related Questions

• A:

Depending on the specific conversion a person may require, 1 milligram can equal 1000 micrograms, 0.001 gram, or 0.1 centigrams in the metric system. However, 1 milligram can also be converted to different Imperial measurements like ounces and drams.

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• A:

There are a thousand milligrams in one gram, and there are a thousand micrograms in one milligram. The conversion factor from microgram to milligram a thousandfold. It can be done by expressing the measurement in micrograms, as a decimal number, and moving the decimal point three places to the right.

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• A:

There is no direct conversion between these measurements because a milligram is a measure of mass and a teaspoon is a measure of volume. However, there are 0.00018 teaspoons in 1 milligram of salt, so 1 milligram divided by 0.00018 teaspoons equals about 5,555 milligrams per teaspoon of salt.