If you need to convert 15 grains to milligrams, what is the equivalent amount?

To convert grains to milligrams, it's important to know that 1 grain is equivalent to approximately 64.8 milligrams. To find the equivalent of 15 grains in milligrams, you would multiply 15 by the conversion factor of 64.8.

Performing the calculation:

15 grains × 64.8 mg/grain = 972 mg.

Since the options are typically rounded, this result can be approximated to 975 mg, which matches the answer provided. This understanding illustrates the significance of unit conversions in pharmacy, specifically how precise measurements can affect dosages and medication preparations.

The key to successful conversions lies in accurately applying the conversion factor and performing the multiplication to ensure that you arrive at the correct milligram measurement.