If a medication dosage is prescribed as 500 grams, how many kilograms is this?

To convert grams to kilograms, it's important to remember the relationship between the two units: 1 kilogram is equal to 1000 grams. Therefore, to find out how many kilograms are in 500 grams, you can divide the number of grams by 1000.

So, the calculation would be:

500 grams ÷ 1000 = 0.5 kilograms.

This means that 500 grams is equivalent to 0.5 kilograms, making this the correct answer. Understanding this conversion is crucial in medication math, as dosages are frequently prescribed in different units, and accurate conversions are essential for patient safety.