Cylinder Volume Calculator in Fluid Ounces
Cylinder volume in US fluid ounces uses V = pi r squared h divided by 1.805 for inch inputs. A cup with radius 2 in and height 6 in has a volume of 75.40 cu in, yielding 41.78 US fl oz (43.48 UK fl oz). Enter bottle or cup dimensions below to find liquid capacity.
Calculator
Calculated dimensions update this diagram
Beverage container and bottle fluid sizing
This tool converts cylinder dimensions into US and UK fluid ounces. It sizes drink bottles, cups, and jars.
Converting cubic inches to US fluid ounces
For inch inputs, US fluid ounces equals V = (pi r squared h) divided by 1.805. One US fluid ounce equals 1.805 cubic inches.
Frequently Asked Questions
How do you calculate cylinder volume into fluid ounces?
Calculate your cylinder's total volume in cubic centimeters. Once you have your cm³ total, divide it by 29.57. The result is your total capacity in US fluid ounces.
Is a fluid ounce the same as an ounce of weight?
No! A fluid ounce measures strictly liquid volume (occupied space), while a standard ounce measures physical mass (weight). Only if you are measuring pure water will 1 fluid ounce roughly weigh 1 standard ounce.
How many fluid ounces are in a standard soda can?
A standard cylindrical soda can in the United States holds exactly 12 US fluid ounces (roughly equivalent to 355 milliliters).
How many ounces are inside an American gallon?
There are exactly 128 US fluid ounces inside a single US gallon.
Are dry ounces measured the same way?
No. When recipes call for 'dry ounces' of flour or sugar, they are referring to the physical weight of the ingredient, not the 3D liquid space.