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Pump NPSH Calculator

Calculates the Net Positive Suction Head available (NPSHa) for a centrifugal pump installation to verify cavitation will not occur. Use it whenever sizing pump suction lines or repositioning a pump relative to its fluid source.

Atmospheric Pressure (Pa)

Vapor Pressure at Pumping Temperature (Pa)

Static Suction Head (m)

Suction Line Friction Losses (m)

Fluid Density (kg/m³)

Fill in the required fields to see your result.

Chemical Engineering

Sherwood Number Calculator

Compute the Sherwood number to quantify convective mass transfer relative to molecular diffusion. Use it when designing absorbers, membranes, or any system where species transport rates matter.

Mass Transfer Coefficient (m/s)

Characteristic Length (m)

Molecular Diffusivity (m²/s)

Fill in the required fields to see your result.

Key differences

	Pump NPSH Calculator	Sherwood Number Calculator
Category	Chemical Engineering	Chemical Engineering
Inputs required	5	3
Result	NPSH Available (m)	Sherwood Number
What it does	Calculates the Net Positive Suction Head available (NPSHa) for a centrifugal pump installation to verify cavitation will not occur. Use it whenever sizing pump suction lines or repositioning a pump relative to its fluid source.	Compute the Sherwood number to quantify convective mass transfer relative to molecular diffusion. Use it when designing absorbers, membranes, or any system where species transport rates matter.