Fluid Flow Calculator
Understanding flow regime and pressure losses is essential in piping and process design.
This Fluid Flow Calculator computes Reynolds number, determines flow regime, and estimates pressure drop using the Darcy–Weisbach equation — perfect for engineers and students.
Reynolds Number & Pressure Drop Tool
Enter pipe diameter, velocity, fluid density, viscosity, pipe length, and roughness.
Click Calculate.
The calculator shows:
Reynolds Number
Flow Regime
Pressure Drop (Darcy–Weisbach)
🧭 How to Use
FAQ
Q1. What does this fluid flow calculator do?
It calculates Reynolds number, flow regime, and pressure drop using Darcy–Weisbach.
Q2. What is Reynolds number?
A dimensionless value that indicates whether flow is laminar, transitional, or turbulent.
Q3. Can this calculator be used for water, oil, or gas?
Yes — enter density and viscosity for any fluid.