# Flow Rate Help

> Velocity + Diameter Calculator

Canonical page: [https://chrome-stats.com/d/id1009898806](https://chrome-stats.com/d/id1009898806)

## Overview

- **ID:** `id1009898806`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Armchair Engineering
- **Category:** Utilities
- **Rating:** 4.30 / 5 (44 ratings)
- **Version:** 1.4
- **Last updated:** 2020-06-25
- **First published:** 2015-07-01
- **Size:** 3.30 MB
- **Data as of:** 2026-09-11
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/flow-rate-help/id1009898806)
- **Website:** [https://armchairengineering.com](https://armchairengineering.com/)
- **Privacy policy:** [https://armchairengineering.com/privacy](https://armchairengineering.com/privacy)

## Description

Quickly find flow rate, required pipe diameter or velocity of a liquid!

Features Include: 

- Accurately solve flow rate equations
- Set preferred diameter unit from: mm, cm, m, km, inches, feet, yards and miles
- Set preferred velocity unit from: m/s, m/min, km/min, km/h, ft/s, ft/min, mi/min and mph
- Set preferred flow rate unit from: m³/s, m³/min, m³/h, l/s, l/min, l/h, gps. gpm and gph
- Select your preferred number of decimal places

## Rankings

- #188,215 — Overall

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Source: [Chrome-Stats](https://chrome-stats.com/d/id1009898806)