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New Microfluidic
Calculator

Click here to try our new handy wizard to determine flow rate, back pressure, flow regime and Reynolds numbers

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home corporate news press releases Flow Resistance 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


custom-chip-pink Circular

custom-chip-pink Rectangular

Enter channel geometry


custom-chip-pink custom-chip-pink
Diameter µm
Height µm
Width µm
Length mm

Select pumping method

custom-chip-pink Displacement pumping: Estimate back pressure (P)
custom-chip-pink Pressure driven flow: Estimate flow rate (Q)

Select fluid parameters


Select fluid


Viscosity cP (Pa.s / 10³)
Density g/cm³ (kg/m³ × 10³)

Pressure and Flow rate parameters



Enter value
Pressure (P)
Flow rate (Q)

Select units
Flow rate unit µL/min mL/min
Pressure unit mbar psi

Results
Pressure
Flow rate
Velocity
Reynolds number
WARNING: Calculation is only valid for Laminar Flow

Initial Conditions
Channel geometry
Channel diameter
Channel height
Channel width
Channel length
Fluid viscosity
Fluid density


custom-chip-pink Please click here to find out more about Dolomite’s Pressure Pumps!
custom-chip-pink Please click here to find out more about Dolomite’s Syringe Pumps!

Dolomite is a world leader in the design and manufacture of innovative microfluidic devices and system solutions. Discover our standard product range and design expertise.

Contact us for further information.