Milligrams, abbreviated mg, and nanograms, abbreviated ng, measure small quantities of mass in the metric system. The gram is the base unit and "milli-" and "nano-" are prefixes. The prefix "milli-" represents 10^-3, or 0.001, while the prefix "nano-" represents 10^-9, or 0.000000001. Since the 10^-3 is one million times larger than 10^-9, each milligram equals 1 million nanograms. Knowing this conversion factor allows you to compare masses in nanograms and milligrams accurately.
Instructions
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Multiply the number of milligrams by 1 million to convert to nanograms. For example, if you have 29 mg, multiply 29 by 1 million to get 29 million ng.
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Divide the number of milligrams by 0.000001 to convert to nanograms. In this example, verify your answer by dividing 29 by 0.000001 to get 29 million ng.
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Confirm your answer with an online milligrams-to-nanograms converter, such as provided in the Resources. Enter the number of milligrams and the equivalent mass in nanograms will be displayed.