# Units of Volume For Pharmacy Math

**U.S. customary units: fluid volume**: Of all the US customary units of measurement, weight has the highest number of commonly-used units: teaspoon, tablespoon, fluid ounce, cup, pint, quart, and gallon. There's a chance that you'll come across a recipe that uses many (if not most) of these units, so pay attention.

**Metric system: units of volume**: How much is it to drink a liter of soda? First off, drinking a liter of soda could result in some serious cavities. Nonetheless, understanding metric units of volume (like liters and milliliters) is really important. Soda? Not so important.

**Liter intuition**: What is the volume of a jar of milk? How about a spoon? A swimming pool?

**How to convert gallons to quarts, quarts to pints, pints to cups, and cups to ounces**: Moving easily between gallons, quarts, pints, cups, and fluid ounces makes you really valuable in a ton of different situations.