Code tool

Pool Filter Area Calculator

Calculate required filter area from design flow and user-supplied filtration rate.

In-browser processingNo account requiredPrivacy details ↗

Area = flow ÷ filtration rate. The user must supply an applicable rate; no regulatory value is built in.

Filter area (m²):

A QUICK WALKTHROUGH

How to use this tool

  1. Enter values in the stated units.
  2. Review the simplified model and exclusions.
  3. Calculate locally; confirm rules and equipment limits separately.

Formula and limits

Area = flow ÷ filtration rate. The user must supply an applicable rate; no regulatory value is built in. This does not determine a safe or code-compliant installation.

Privacy

Inputs are calculated locally and are not uploaded.

GOOD TO KNOW

Common questions

Does this certify elevator or pool design?

No. It is an arithmetic estimate using only values you supply.