Reynolds number calculator
Reynolds number calculation
The Reynolds number is a dimensionless value that measures the ratio of inertial forces to viscous forces and descibes the degree of laminar or turbulent flow. Systems that operate at the same Reynolds number will have the same flow characteristics even if the fluid, speed and characteristic lengths vary.
The Reynolds number is calculated from:
Kinematic ViscosityExample kinematic viscosity values for air and water at 1 atm and various temperatures.