Bathroom Layout Calculator - Check Clearances & Spacing

Check if your bathroom layout meets standard building code and design clearances. Enter your measurements for toilets, vanities, and showers to get instant pass/fail feedback.

Room Dimensions

Minimum Clearances

All values are checked against NKBA guidelines in inches.

How to Use This Calculator

Enter the overall room dimensions and each clearance measurement in inches. The calculator evaluates every value against the NKBA and ADA guidance embedded in the rule set, so you can see which clearances pass or fail before you finalize the layout.

Methodology

Each clearance is checked against the authoritative minimum listed in the NKBA guidelines. The engine flags values below the suggested thresholds and reports how far you are from compliance, while room dimensions provide context but are not part of the pass/fail summary.

  • Only measurements provided in the form are evaluated; empty fields are ignored until a value is entered.
  • Results show pass/fail status with rounded feedback so you can confidently explain how much extra clearance you have or need.
  • Room dimensions are preserved for reference and to help you think through circulation and fixture placement.
Results are estimates and intended for planning. Always verify final layouts with local building codes and licensed professionals.

Full original guide (expanded)

Why Use This Calculator?

  • Avoid Costly Mistakes: Verify your plan before you build or buy fixtures.
  • Ensure Comfort: Check for adequate space to move and use each fixture without feeling cramped.
  • Plan for Accessibility: Use ADA-recommended values (like 32" doorways) to create a space that's usable for everyone.
  • Instant Feedback: Get immediate pass/fail results as you type, based on industry-standard guidelines.

Related DIY Tools

Audit: Needs review

This page was rebuilt from an audit extract; the original specification noted that no formulas or variable definitions were provided. Verification remains pending.

Verification pending · Last code update: 2026-01-19

✓ Verified by CalcDomain Team Last Updated: 2026-01-19 Version 0.1.0-draft
Formulas

Formula (LaTeX) + variables + units

No formulas were provided in the audit spec for this page.

Variables and units were not listed in the original guidance.

Citations
Changelog

0.1.0-draft · 2026-01-19

  • Initial audit spec draft generated from HTML extraction (review required).
  • Verify formulas match the calculator engine and convert any text-only formulas to LaTeX.
  • Confirm sources are authoritative and relevant to the calculator methodology.
Version 1.5.0