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# What is the difference between mg and mcg?

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The difference between mg and mcg is in terms of value, with 1 mg being equivalent to 1000 mcg. These abbreviations stand for milligram and microgram respectively.

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The root word is gram, which is symbolized by g. Micro and milli, which are prefixes, have the value of 0.000001, one millionth, and 0.001, one thousandth, respectively. Thus, a milligram is one thousandth of a gram, and a microgram is one millionth of a gram. These units are standardized by the SI or International System of Units, commonly referred to as the metric system. Grams, including milligrams and micrograms, are units of mass.

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## Related Questions

• A:

To convert an amount from milligrams to milliequivalents, convert the amount given into millimoles by calculating the atomic weight and dividing it by the amount of the substance in milligrams. Then, multiply the amount in millimoles by the valence number to get the amount in milliequivalents.

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To convert parts per million to milligrams per liter, use the conversion factor of 1 ppm = 1 mg/L. This means that 1 part per million is equal to 1 milligram per liter.

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To convert milligrams (mg) to milliliters (ml), the number of milligrams must be multiplied by the density of the liquid, which equals the volume in liters,and then divided by 1,000 to convert liters to milliliters. The density of each liquid is unique.