NPSH Calculator
NPSH Calculator

This page is not an official page of the app or its developer, but an independent editorial publication created for informational and commentary purposes. Unless expressly stated otherwise, neither the app nor its developer is affiliated with, endorsed by, sponsored by, authorized by, or otherwise officially connected with MWM, Apple, Google Play, the app publisher, or the app's developer, and nothing on this page implies that the app was developed using MWM's services. Any trademarks, logos, screenshots, and other content remain the property of their respective owners.

Logo of NPSH Calculator

NPSH Calculator

The essential pocket tool for pump engineers and operators to instantly calculate friction losses, suction head availability, and safety margins. Streamline your design and field troubleshooting with built-in fitting coefficients and seamless US/SI unit switching.

Key Figures

Downloads

0

User Rating

1.0/5

Total Ratings

0

Publisher

Transparent Blue Water LLC

Category

Utilities

Locales

1

Latest Version

1.0

Size

31.4 MB

First Released

Dec 11, 2025
Features

Engineered for Precision & Field Performance

The all-in-one tool for engineers and operators to calculate suction line head losses, assess NPSH availability, and prevent costly pump cavitation.

Smart Fittings & Friction Loss

Easily account for pipe material, flow velocity, and complex fittings to automate tedious manual friction loss calculations.

Real-World NPSH Analysis

Factor in site altitude, water temperature, and safety margins to ensure NPSH available exceeds manufacturer requirements.

The following screenshots and description are sourced directly from the app's official store listing and are the property of the app developer.

App Store

Screenshots

NPSH Calculator - NPSH Calculator app screen showing pipe input data with a toggle to switch between US and SI units

NPSH Calculator app screen showing pipe input data with a toggle to switch between US and SI units

NPSH Calculator - NPSH Calculator mobile app home screen showing pipe data input fields for length flow and diameter in SI units

NPSH Calculator mobile app home screen showing pipe data input fields for length flow and diameter in SI units

NPSH Calculator - NPSH Calculator app screen for entering pump suction operating conditions

NPSH Calculator app screen for entering pump suction operating conditions

NPSH Calculator - NPSH Calculator app screen for selecting pipe fittings and valves to calculate hydraulic head loss

NPSH Calculator app screen for selecting pipe fittings and valves to calculate hydraulic head loss

NPSH Calculator - NPSH Calculator app screen showing the fitting list with coefficients quantities and a local head loss summary

NPSH Calculator app screen showing the fitting list with coefficients quantities and a local head loss summary

NPSH Calculator - A mobile app screen displaying pump engineering results including NPSH available calculations and a detailed list of pipe fittings

A mobile app screen displaying pump engineering results including NPSH available calculations and a detailed list of pipe fittings

Description

NPSH Calculator helps pump engineers, designers and operators quickly estimate suction line head losses and Net Positive Suction Head (NPSH) available. Start on the Home screen by entering the pipe data used for head loss calculations: length, flow, internal diameter, pipe material and Hazen–Williams roughness C. Add local losses with the intuitive Fittings screen, where you can add or remove common fittings such as elbows, valves, contractions and foot valves, and see the total fitting coefficient used in the calculation. On the NPSH screen, enter water temperature, site altitude, suction static head and the safety margin you want to apply. The app then calculates: • Flow velocity in the suction pipe • Friction loss in the pipe • Minor losses due to fittings • Total suction head loss • Atmospheric head, vapor pressure head and applied safety margin • NPSH available at the pump suction Results are shown in a clear, scrollable summary that separates input values, head loss results, NPSH inputs, NPSH available and the list of fittings used in the calculation. Explanatory tooltips and on-screen NPSH guidance help students and junior engineers understand where each term comes from and how it affects pump performance. You can switch between US and SI units at any time (ft / gpm / in / °F or m / L/s / mm / °C), and all inputs and results are updated to the selected unit system for consistent, error-free work. Use NPSH Calculator as a fast design and troubleshooting aid when sizing suction lines, reviewing pump selections or checking whether NPSH available comfortably exceeds the NPSH required by the pump manufacturer. Note: This app is intended for preliminary calculations and educational use. Always confirm final designs and pump selections with a qualified engineer and the pump manufacturer.

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This page is not an official page of the app or its developer, but an independent editorial publication created for informational and commentary purposes. Unless expressly stated otherwise, neither the app nor its developer is affiliated with, endorsed by, sponsored by, authorized by, or otherwise officially connected with MWM, Apple, Google Play, the app publisher, or the app's developer, and nothing on this page implies that the app was developed using MWM's services. Any trademarks, logos, screenshots, and other content remain the property of their respective owners.