# Pipe Sizer - Water Pipe Sizing — Pipecalc Pressure & gravity

> Calculates optimal pipe diameters for water systems under pressure and gravity. (iPhone/iPad app by Wassim Murr.)

- Source: https://appshunter.io/ios/app/pipe-sizer-water-pipe-sizing/id1576656624 (this page in markdown: same URL + `.md`)
- Developer: [Wassim Murr](https://appshunter.io/developer/1474939474)
- Category: Utilities, Productivity
- Price: $0.99 (on sale, was $1.99)
- Rating: 5.00/5 from 3 App Store ratings · 2 written reviews indexed
- Age rating: 4+
- Requires: iOS 17.6 · 1 MB
- Languages: American English
- Released: 2021-07-15
- Data updated: 2026-08-26
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/pipe-sizer-water-pipe-sizing/id1576656624/reviews.md

## What is Pipe Sizer?

PipeSizer helps you quickly choose the right pipe diameter for water systems — for both pressure and gravity flow.

PRESSURE PIPE SIZING
• Size pipes from a target flow rate.
• Set your maximum friction rate and velocity limits.
• Calculations based on the Hazen-Williams equation.

GRAVITY PIPE SIZING
• Size pipes from a target flow rate.
• Evaluate flow capacity and velocity under gravity conditions.
• Calculations based on the Manning equation.

KEY FEATURES
• Automatic recommended pipe size based on your limits.
• Multiple pipe materials with built-in coefficients (more added over time).
• Works in both SI and Imperial (I-P) units.
• Designed for engineers, plumbers, and irrigation/drainage design workflows.

Feedback is welcome — it directly shapes upcoming updates.

## Key features

- Pressure pipe sizing
- Gravity pipe sizing
- Automatic pipe size recommendations
- Multiple pipe material support
- SI and Imperial units
- Hazen-Williams and Manning equations

## Chart rankings

- #200 in Top Paid · Utilities (US App Store)

## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/pipe-sizer-water-pipe-sizing/id1576656624/reviews.md

### 5/5 — Very useful

*2021-07-20*

Perfect for sizing gravity pipes

### 5/5 — Excellent outcome , very user friendly

*2021-07-16*

Suitable for pipe sizing calculation, came in very handy, user friendly..good job!

## Frequently asked questions about Pipe Sizer

### What is Pipe Sizer used for?

Pipe Sizer helps you quickly choose the right pipe diameter for water systems, supporting calculations for both pressure and gravity flow based on established engineering equations.

### Does Pipe Sizer support different units?

Yes, Pipe Sizer works in both SI and Imperial (I-P) units, making it versatile for various design standards and user preferences.

### What pipe materials are included in Pipe Sizer?

The app includes built-in coefficients for multiple pipe materials, with plans to add more over time based on user feedback and updates.

### How does Pipe Sizer calculate pipe sizes?

For pressure pipe sizing, it uses the Hazen-Williams equation, while gravity pipe sizing utilizes the Manning equation, both based on target flow rate and user-defined limits.

### Is Pipe Sizer available on multiple devices?

Pipe Sizer is available for both iPhone and iPad, offering a convenient tool for mobile professionals.

### How often is Pipe Sizer updated?

The app was last updated on January 13, 2026, indicating a commitment to ongoing development and feature additions.

### What is the price of Pipe Sizer?

Pipe Sizer is a paid application, available for a one-time purchase of $1.99.

### Does Pipe Sizer have ads?

No, Pipe Sizer is ad-free, providing an uninterrupted user experience for its calculations.

## Version history (last 3 releases)

### 1.2 — 2026-01-13

Improved performance and stability, with small UI refinements and bug fixes.

### 1.1 — 2022-08-23

Minor bug fix

### 1.0 — 2021-07-16

No release notes.

## Apps similar to Pipe Sizer

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Centrifugal Pump Spec](https://appshunter.io/ios/app/centrifugal-pump-spec/id482488028) | — | $5.99 | Utilities |
| [Pipe Expansion Calculator](https://appshunter.io/ios/app/pipe-expansion-calculator/id1622825111) | 5.0 (1) | $0.99 | Utilities |
| [Duct Calculator Pro](https://appshunter.io/ios/app/duct-calculator-pro/id1492222891) | 1.0 (1) | $3.99 | Utilities |
| [HydroCalc Basic](https://appshunter.io/ios/app/hydrocalc-basic/id6752577110) | — | Free | Utilities |
| [Farm Tools](https://appshunter.io/ios/app/farm-tools/id507756976) | 5.0 (2) | $0.99 | Utilities |
| [MEP FIXIT](https://appshunter.io/ios/app/mep-fixit/id6461165218) | — | Free | Utilities |

## More apps by Wassim Murr

- [Ductulator - Duct Sizing](https://appshunter.io/ios/app/ductulator-duct-sizing/id1474939475)
- [Duct Construction](https://appshunter.io/ios/app/duct-construction/id6443518338)
- [Word Jar - Vocabulary](https://appshunter.io/ios/app/word-jar-vocabulary/id6444877815)
- [Psychrometrics](https://appshunter.io/ios/app/psychrometrics/id6455889577)
- [Flip - Flash cards](https://appshunter.io/ios/app/flip-flash-cards/id6744840810)

All apps by Wassim Murr: https://appshunter.io/developer/1474939474

## Related topics

[water pipe sizing plumb](https://appshunter.io/ios/topics/water-pipe-sizing-plumb) · [pipe sizing](https://appshunter.io/ios/topics/pipe-sizing)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-26.*