Cylinder Volume to Ounces

Cylinder Volume to Ounces is a calculator that converts the volume of any cylinder into fluid ounces — the unit used in the US for beverage sizing, cooking measurements, and recipe scaling. This tool exists because fluid ounces are the dominant volume unit on US food and drink labels, yet the cylinder formula produces results in cubic units.

This calculator bridges that gap by computing V = πr²h and then converting to both US fluid ounces (29.57 mL each) and Imperial fluid ounces (28.41 mL each). It's indispensable for bartenders, bakers, food packaging designers, and anyone who needs to know how many ounces a cylindrical container holds.

Whether you're designing a custom cup, calculating a recipe portion, or labeling a product, this tool gives you accurate fluid ounce measurements without manual conversion.

Step 1: Measure radius (r) and height (h) in centimeters. Step 2: Calculate V = π × r² × h to get cm³ (which equals mL). Step 3: Divide by 29.5735 for US fluid ounces.

Example: A tumbler with r = 4 cm and h = 12 cm. V = π × 16 × 12 = 603.19 mL. In US fl oz: 603.19 ÷ 29.5735 = 20.39 oz. That's a standard 20-oz cup.

A standard US soda can holds 12 fl oz (355 mL). A pint glass holds 16 fl oz (473 mL). A large water bottle holds 32 fl oz (946 mL). A standard coffee mug shaped as a cylinder holds about 8–12 fl oz.

Knowing these benchmarks helps you estimate whether a cylindrical container will hold the amount you need. If your cylinder's volume comes out to around 600 mL, that's roughly 20 oz — a typical reusable water bottle.