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Free Pipe Volume Calculator
Calculate the volume of liquid a pipe can hold based on its inner diameter and length. Results are shown in gallons per foot, total gallons, and liters. Useful for plumbing system design, water treatment, and irrigation planning.
Frequently asked questions
How do I calculate the volume of a pipe?
Volume = π × r² × L, where r is the inner radius and L is the length. For a 1-inch inner diameter pipe that is 100 feet long: π × (0.5)² × 1,200 inches ÷ 231 = 4.08 gallons.
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