How the calculation works
Flow = pipe area × velocity. Head loss uses Darcy–Weisbach; turbulent friction uses the Swamee–Jain approximation.
How to use the result
Add fittings, valves, elevation, temperature effects and required outlet pressure for a real design.
Limitations
- Results are estimates based on the assumptions entered.
- Check current quotes, standards and professional requirements before committing money or approving a design.
- Change one assumption at a time to understand sensitivity.