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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

Don't miss out on the latest microfluidic news!

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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


Diameter		µm
Height		µm
Width		µm
Length		mm

Select pumping method

Displacement pumping: Estimate back pressure (P)

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

Please click here to find out more about Dolomite’s Pressure Pumps!

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.