Pipe Volume Calculator
Calculate the internal volume of a pipe from its diameter and length. Get results instantly in cubic metres, litres, gallons, and cubic feet.
Enter pipe dimensions
Result
Enter the pipe dimensions and click calculate.
Measure inside diameter
Use the pipe's internal diameter, not its outside diameter, because the calculator measures the usable space inside the pipe.
Volume formula
A pipe is treated as a cylinder. Its volume equals π multiplied by the radius squared and the pipe length.
Useful conversions
One cubic metre equals 1,000 litres. The result also includes US gallons and cubic feet for convenience.
Frequently asked questions
Should I use internal or external diameter?
Use the internal diameter when calculating how much liquid or material the pipe can hold.
Can I mix measurement units?
Yes. The calculator converts the diameter or radius and pipe length into metres before calculating the volume.
Does this calculate pipe wall volume?
No. It calculates the empty internal capacity. Pipe material volume would require both outside and inside diameters.
Results are estimates generated locally in your browser from standard geometry, material yield and waste assumptions. They are for planning purposes only, not engineering, structural, code or supplier advice. Confirm dimensions, material strength, delivery constraints and local building codes with a licensed professional before purchasing or building. VisionVix accepts no liability for decisions based on this tool's output.
