Drop photos or a video of your stairwell Drop several and the sharpest is picked for you. A short clip works too, and the clearest frame is chosen automatically.

On a phone this opens your camera roll. It is read in this page and never uploaded anywhere.

Measure your staircase

Real inches out of one photograph, in the browser. No upload, no GPU.

No site tools in this browser. The measuring works, but the agent cannot help. Use ChatGPT's desktop browser, or Chrome or Edge with chrome://flags/#enable-webmcp-testing enabled.

How this works

Load a photo of the surface you want to measure.
Click the four corners of something flat, rectangular and lying on that same surface, clockwise from the near left. A stair tread (the flat part you step on), a floor tile, a sheet of paper.
Type its real size below. This is the only thing telling the page what scale the photograph is at, so a guess here is a guess in every number after it.
Now click any two points on that same surface and get real inches.

The reference

The real size of the rectangle you just clicked, in inches. It starts at a 41 and a half inch stair tread because that is this house's; change it to whatever you actually clicked.

width in

depth in

Waiting for four corners.

Assign to your staircase

Count the steps

These are counted, not measured, and they decide the shape of the staircase you will orbit.

steps in total

of those, pie-shaped

Put this frame on the walls in 3D

Saved in this browser only. Nothing is sent anywhere.

Your staircases

Nothing saved yet. Measure one and name it, and it will be here next time.

Ask your agent

“Set the reference to a 41 and a half inch tread.”
“What have I measured so far?”
“Save the last reading as the clear width.”
“Send my staircase to Elbow Room.”

Reading your file