Live tool/tool/reynolds-number-calculator

Reynolds Number Calculator

Estimate Reynolds number and flow regime from velocity, diameter, and fluid assumptions.

EngineeringFluid MechanicsEducation

FluidVelocity

m/s

Hydraulic diameter

Custom kinematic viscosity

m2/s

Reynolds number

30,000

Flow regime

Turbulent

Velocity

1.2 m/s

Kinematic viscosity

1.00e-6 m2/s

Fluid assumption

Water preset assumes room-temperature water.