Cylinder Volume Calculator in Inches
Cylinder volume in inches uses the formula V = pi r squared h. For a cylinder with radius 4 in and height 10 in, multiplying pi times 16 times 10 gives 502.65 cu in, which equals 2.176 US gallons or 8.237 litres. Enter your inch dimensions below to compute exact cubic inches and liquid capacity.
Calculator
Calculated dimensions update this diagram
Standard US imperial pipe and container sizing
This tool computes volume from inch dimensions. It is used in woodworking, metal work, and fabrication.
Inch dimensions to cubic inches and gallons
With dimensions in inches, volume is V = pi r squared h in cubic inches. Divide cubic inches by 231 to find US gallons.
Frequently Asked Questions
How do you calculate cylinder volume using inches?
Measure the radius and the height of the cylinder strictly in inches. By running the standard geometric formula (Pi × r² × h), the direct result mathematically outputs as cubic inches (in³).
How do you manually convert cubic inches to US gallons?
Take your final cubic inch (in³) volume and simply divide it by the constant 231. The result will be your physical liquid capacity measured in US gallons.
How do you convert cubic inches directly to liters?
Because a liter is significantly smaller than a cubic inch, you must multiply your total cubic inch volume by roughly 0.016387 to discover your liter capacity.
How many cubic inches fit inside one cubic foot?
Because there are 12 inches in a physical foot, a 3D cubic foot (12×12×12) holds exactly 1,728 cubic inches.
Can I input fractions of an inch?
Yes, but you must convert the fraction into a decimal first. For example, if your radius is 4.5 inches (4 and 1/2), enter 4.5 into the tool.