Pipe Volume Calculator
A free, browser-based calculator. Runs entirely in your browser — no sign up, nothing stored.
100% FreeRuns in your browserBasic
Enter Values
Enter your values and press Calculate to see results.
How to use this calculator
- Enter the inside diameter (mm) and length (m).
- Read the volume in litres and cubic metres.
How it works
Volume = π × radius² × length, using the inside radius (half the inside diameter).
Worked example
50 mm bore, 10 m. ≈ 19.63 litres.
Common mistakes
- Using the outside diameter — capacity depends on the inside bore.
- Mixing units — diameter in mm, length in m (the tool handles the conversion).
Frequently asked questions
Inside or outside diameter?
Inside — the bore is what holds water. Pipe specs often quote outside diameter, so check.
Related tools
Tip: Enter any known values to calculate the remaining results.
All calculations run in your browser. Your inputs are never saved or transmitted.