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MeasureFloorPlan vs Planimeter: Floor Plan Area Calculator Compared
Both MeasureFloorPlan and Planimeter let you trace a shape on an image and calculate its area. The difference is why they were built and who they were built for. Planimeter is a general-purpose area measurement tool. MeasureFloorPlan is purpose-built for ANSI-compliant GLA calculation from floor plans.
The short version
- Planimeter: A flexible tracing tool for measuring area in maps, satellite images, or photos. Good for general area estimation.
- MeasureFloorPlan: Built specifically for floor plan GLA. Supports PDF upload, multi-polygon tracing, above/below-grade separation, and ANSI Z765-compliant output.
MeasureFloorPlan vs Planimeter: at a glance
| MeasureFloorPlan | Planimeter | |
|---|---|---|
| Primary use | Floor plan GLA calculation | General area/distance measurement |
| PDF support | Yes: renders page 1 automatically | No (image only) |
| ANSI Z765 workflow | Yes: above/below-grade polygons | No appraisal-specific features |
| Multiple polygons | Yes: per-level, per-area | Limited |
| Scale setting | Click two points, enter real-world length | Similar approach |
| Export | PDF report with GLA breakdown | Basic numeric output |
| Platform | Browser (desktop/laptop) | iOS app + web |
| Pricing | $7-$25 in credits | Free tier + paid plans |
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Measure your floor plan →What Planimeter does well
Planimeter started as a satellite map measurement tool: useful for measuring land area, rooftop dimensions, or any irregularly shaped region you can see from above. The app extended its tracing capability to uploaded images, which is how some users ended up applying it to floor plans.
It works. If you have a to-scale floor plan image, you can trace the perimeter, set a scale reference, and get an area number. For occasional, informal use it is a reasonable option.
Where MeasureFloorPlan is the better fit for appraisers
Planimeter was not designed with appraisal workflow in mind. When you need ANSI Z765-compliant GLA, there are meaningful gaps:
- No PDF support: Most floor plans from CubiCasa, iGUIDE, and appraiser sketch software export as PDF. Planimeter requires you to convert to an image first. MeasureFloorPlan accepts PDFs directly and renders page 1 automatically.
- No above/below-grade separation: ANSI GLA requires tracking which polygons are above grade and which are not. MeasureFloorPlan labels each polygon accordingly; Planimeter has no concept of grade.
- No appraisal report output: MeasureFloorPlan exports a PDF with the floor plan image, labeled polygons, per-area measurements, and total GLA. Planimeter gives you a number.
- Desktop-optimized: Precision polygon tracing on a floor plan is faster with a mouse than a phone screen. MeasureFloorPlan is built for desktop browsers; Planimeter is primarily a mobile app.
When Planimeter makes sense
- You need a quick area estimate from a satellite image or aerial photo
- You are measuring a property boundary or lot size, not a floor plan
- You need a free tool for occasional one-off measurements and do not need ANSI compliance
Bottom line
Planimeter is a capable general-purpose measurement tool that some users repurpose for floor plan area. MeasureFloorPlan is built specifically for that job: with PDF support, ANSI workflow, multi-polygon GLA tracking, and a report export designed for appraisal use. If floor plan GLA is a regular part of your work, MeasureFloorPlan is the right tool.
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