If a prescription calls for 800 mg, how many grams is that?

To convert milligrams (mg) to grams (g), you need to know the relationship between these two units. There are 1,000 milligrams in a single gram. Therefore, to convert from milligrams to grams, you can divide the number of milligrams by 1,000.

In this case, the prescription calls for 800 mg. So, you would perform the calculation:

800 mg ÷ 1,000 = 0.8 g.

Thus, the correct conversion from 800 mg to grams is 0.8 grams. This conversion is fundamental in medication administration to ensure accurate dosing. Understanding this conversion is crucial for properly interpreting medication prescriptions and ensuring patient safety.