Milligrams and micrograms measure mass. Both are variations of the gram, just with a prefix added. The metric system regularly uses prefixes for units of various sizes. All prefixes are related by a power of 10. For example, the prefix "milli-" represents 0.001 while the prefix "micro-" represents 0.000001. Therefore, each milligram equals 1,000 micrograms. You might need to convert if you want to compare two masses, but one is in milligrams while the other is in micrograms.
Instructions
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Divide the number of milligrams by 0.001 to convert to micrograms. For example, if you have 4.76 mg, divide 4.76 by 0.001 to get 4,760 micrograms.
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Multiply the number of milligrams by 1,000 as another method to convert to micrograms. In this example, multiply 4.76 by 1,000 to get 4,760 micrograms.
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Check your conversion with an online milligrams-to-micrograms converter (see Resources). Enter the number of milligrams and click "Go!"