Pump Calculators contains the following calculators. All calculators are in SI and imperial units unless otherwise specified.

Affinity Laws calculators (changing velocity)
Affinity Laws calculators (changing diameter)
Pump Power calculators
Specific Suction Speed calculators
Water pumping cost calculators (imperial units only)

Please send us any comments or questions using our website.

What’s New

Version 3.1

- Minor updates

App Privacy

The developer, FPC Ltd., has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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