PlanSnapper
5 free measurements leftGet Full Access

Works with CubiCasa, Matterport, architect drawings, PDFs, or any to-scale image.

35px

Increase gap if doorways leak through. Decrease if corners are missing.

Areas
None yet.

Choose a wall you know the length of, or pick any two points manually.

No scale set yet.
📖 Tool Guide
Best experienced on a desktop browser.
Upload a floor plan to begin.

Drop your floor plan here

or browse files

CubiCasa · Matterport · Architect drawings · Any to-scale image

Free Floor Plan Square Footage Calculator

Upload any floor plan image and trace the rooms to calculate gross living area (GLA). No account needed — works directly in your browser. Built for real estate appraisers and agents who need a fast, reliable second check on square footage.

How it works

  1. Upload a floor plan — any JPG, PNG, or screenshot of a PDF sketch works.
  2. Set the scale — trace a known dimension so the tool calibrates real-world measurements.
  3. Trace each room — click to place points around the perimeter. PlanSnapper calculates area as you go.
  4. Get your GLA total — all traced areas sum automatically, consistent with ANSI Z765 methodology.

Who uses PlanSnapper

Frequently asked questions

How does the free floor plan measurer work?

Upload any floor plan image — a scan, photo, or PDF export — then trace the rooms by clicking points. PlanSnapper calculates the square footage of each area and totals your GLA automatically.

Do I need an account to use the free tool?

No account required. You get 5 free measurements with no sign-up. Saving projects and exporting PDF reports require a paid plan.

What floor plan formats does it accept?

Any image format works — JPG, PNG, or a screenshot of a PDF floor plan. As long as the floor plan is visible as an image, you can upload and trace it.

Is the square footage calculation ANSI-compliant?

PlanSnapper measures gross living area (GLA) by tracing the exterior perimeter of finished above-grade space, consistent with ANSI Z765 methodology for residential appraisal.

What happens after my 5 free measurements?

After 5 free uses, you can upgrade to a $9 day pass for 24-hour unlimited access, or a $29/month plan for ongoing use with project saving and PDF export.

Can I use this for real estate appraisal?

Yes. PlanSnapper is built specifically for real estate appraisers who need to verify or recalculate GLA from floor plan sketches or scans. It is faster than manually re-sketching and gives you a reliable second check.

Need more than 5 measurements?

Get a day pass for $9 or go monthly for $29 — unlimited measurements, project saving, and PDF export.

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