Microfluidic Calculator

Microchannels Flow Rate and Pressure Calculator

Using this wizard, you can determine the back pressure generated in a constant flow rate system or the flow rate generated in a fixed pressure system, as well as the Reynolds number.

Please click on the NEXT button to start using the wizard.

NOTE: The calculations are based on the Poiseuille formula for frictional pressure drop in a channel with laminar flow.

Select channel geometry

Circular

Rectangular

Enter channel geometry

μm

mm

Enter channel geometry

μm

mm

Select pumping method

Displacement pumping

Pressure driven flow

Select fluid parameters

Select fluid

Viscosity cP (Pa.s / 10³)

Density g/cm³ (kg/m³ × 10³)

Pressure and Flow rate parameters

Enter Flow rate value and select Flow rate and Pressure units

Enter value (Q)

Select units

Flow rate unit: µL/min mL/min

Pressure unit: mbar psi

Pressure and Flow rate parameters

Enter Flow rate value and select Flow rate and Pressure units

Enter value (P)

Select units

Flow rate unit: µL/min mL/min

Pressure unit: mbar psi

Results

Results
Pressure:
Flow Rate:
Velocity:		m/s
Reynolds number:		Laminar Flow

Initial Conditions
Channel geometry:
Channel diameter:		μm
Channel height:		μm
Channel width:		μm
Channel length:		mm
Fluid viscosity:		cP (Pa.s / 10³)
Fluid density:		g/cm³ (kg/m³ × 10³)

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