---
title: Pipe Size Flow Chart
description: "*This chart is for general reference only. Consult the pipe manufacturer specifications for your pipes true flow.* The maximum flow for the pipe size is indicated, to keep the velocity below five feet per second (ft/sec) maximum. GPM = (Velocity…"
url: "https://husqvarna-water.com/knowledgebase/pipe-size-flow-chart/"
updated: "2024-04-26"
category: "Blu-Lock"
tags:
  - "Blu-Lock"
  - Pipe
---

# Pipe Size Flow Chart

*This chart is for general reference only. Consult the pipe manufacturer specifications for your pipes true flow.*

The maximum flow for the pipe size is indicated, to keep the velocity below five feet per second (ft/sec) maximum.

GPM = (Velocity [ft/sec] x Inside Diameter (inches) / 0.4085

| Inside Diameter of Pipe | Water Flow in GPM |
| --- | --- |
| 0.5 | 4.5 |
| 0.75 | 8 |
| 1 | 13 |
| 1.25 | 23 |
| 1.5 | 31 |
| 2 | 52 |
| 2.5 | 73 |
| 3 | 113 |
| 4 | 192 |
| 5 | 306 |
| 6 | 445 |
| 8 | 772 |

[Check out the reference section of our catalog for a more detailed listing!](http://catalogs.husqvarna-water.com/books/kzjv/#p=121)