How many micrograms are in 1 milligram?

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Multiple Choice

How many micrograms are in 1 milligram?

Explanation:
Understanding metric prefixes helps here. Milli- means one thousandth, while micro- means one millionth. The difference between these prefixes is a factor of 1000, so there are 1000 micrograms in every milligram. Multiply by 1000 to go from mg to mcg: 1 mg × 1000 = 1000 mcg. Conversely, to go from mcg to mg, divide by 1000. So the number of micrograms in 1 milligram is 1000 mcg.

Understanding metric prefixes helps here. Milli- means one thousandth, while micro- means one millionth. The difference between these prefixes is a factor of 1000, so there are 1000 micrograms in every milligram. Multiply by 1000 to go from mg to mcg: 1 mg × 1000 = 1000 mcg. Conversely, to go from mcg to mg, divide by 1000. So the number of micrograms in 1 milligram is 1000 mcg.

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