Plan Measure is House Plan Direct’s free, browser-based floor plan measurement tool. Upload a PDF or image of an existing plan, calibrate it against one known dimension — a wall length, a door width, a scale bar — and Plan Measure scales the whole page to that dimension. From there you can measure lengths, areas, angles and whole rooms directly on top of the plan. Everything runs locally in your browser; your file is never uploaded to a server just to measure it.

How do I measure a floor plan online?

Upload your plan, draw a line along one dimension you already know, and enter its real-world value — every length, area and room you measure afterwards is to true scale.

Can I measure area as well as length?

Yes. Trace around a room or any shape to get its area, alongside straight-length, angle and multi-point path measurements.

Do I need to upload my plan to a server?

No. Plan Measure processes your PDF or image entirely in your browser — nothing is sent to House Plan Direct’s servers just to measure it.

Is Plan Measure free?

Yes. Uploading, calibrating and measuring is free. Unlock a finished project for £2.99 when you want the clean, watermark-free export.