Specific speed
Combine speed, flow and head, accounting for metric and US conventions, multiple stages and double-suction designs.
Open calculatorTools & calculators
Free engineering tools.
Tools for preliminary hydraulic sizing and mechanical design. Calculate pump parameters, examine relationships and prepare for further design.
Pump shaft power
Calculate hydraulic power, mechanical shaft power and a selectable reserve for further drive sizing.
Open calculatorNPSH for centrifugal pumps
Estimate available head for water and compare it with NPSH3 and project-specific margins.
Open calculator
Web application · beta
Centrifugal Pump Design Tool
From duty point to initial impeller geometry: preliminary hydraulic design, meridional section, blade projection and DXF export for further CAD work.
The calculators support preliminary sizing. Formulae, units and model limits are explained on each page. Check critical design data against project requirements and manufacturer documentation.
Which design task would you like to move forward?
Briefly describe your task, its current status and the results you need. Together, we will define the appropriate scope.