Water Pipe Sizer SE is a free Android application program designed for civil engineers, designers, and other engineering professionals involved in clean water network design. This clean water pipe sizing application program is a handy tool that features quick pipe sizing and quick calculations for flow velocity and pipe head loss due to friction. The app is intended for single pipe analysis or one pipe at a time for series of pipes and may serve as a tool for design reviewers when verifying pipe sizes in hydraulic models. The pipe size selection is based on the built-in catalog for various pipe materials compliant with certain standards.

The app has two versions, the lite version, and the Standard Edition (SE). The lite version is a free version with minimal relevant features, while the SE version is also offered for free on Google Play. The lite version features basic hydraulic calculations for pipe sizing, actual fluid velocity, specific head loss, and head loss gradient. The SE version offers additional features for pipe size optimization and a spreadsheet for population/consumer-based design flow calculations for water network trunk lines.