How many milliliters are in 4 ounces?

To convert ounces to milliliters, it is important to use the correct conversion factor. One ounce is equivalent to approximately 29.57 milliliters. Therefore, to find the number of milliliters in 4 ounces, you would multiply 4 by 29.57 mL.

Calculating this gives:

4 ounces × 29.57 mL/ounce = 118.28 mL.

When rounding to the nearest ten, we get approximately 120 mL. This makes 120 mL the closest option to the calculated value, confirming that it is the correct answer. Understanding this conversion is crucial in the pharmacy setting, as precise dosing is essential for patient safety and medication effectiveness.