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Hydraulics
Pipe Sizing Calculator
Enter values in the stated units. Example inputs are provided to help you explore the method.
Results
Your results will appear here after calculation. Changing an input clears the previous result.
Method & assumptions
- Finds a minimum internal bore satisfying the supplied mean-velocity and straight-pipe pressure-gradient limits.
- Considers velocity constraints and pressure drop limits
- Uses the pressure-drop calculator’s Darcy friction model and limitations. Transition-region results are uncertain. It does not select wall thickness, pressure class or a pipe-network design.
- Returns minimum internal diameter; choose a commercial size with an equal or larger bore