Free interactive tool

Commercial Restroom Fixture Count Calculator

Enter your occupancy type and headcount to get the IPC code-required minimum number of toilets, urinals, and lavatories for your project.

🆕 Free tool✅ No signup required📋 Updated 2026
How to use this tool

Fill in the fields below and click Calculate. Results are based on IPC 2021 model code requirements. Always verify with your local AHJ as local amendments may apply.

About this tool

This calculator is based on the International Plumbing Code (IPC) 2021 edition fixture count requirements and ADA Standards for Accessible Design. Results provide minimum code-required counts — your project may require additional fixtures based on local amendments, facility management preferences, or anticipated peak load conditions.

For complex projects, we recommend having a licensed plumbing engineer review fixture counts as part of the permit set. This tool is intended for early planning and schematic design use.

Disclaimer

This tool provides general guidance based on model code requirements. Always verify fixture counts with your local Authority Having Jurisdiction (AHJ). This tool does not constitute professional engineering or architectural advice.