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Measure the room with your phone’s camera

Point at the floor, a table or a wall, then tap from one end to the other. Distances and areas are worked out from your phone’s sense of space, usually to within a centimetre or two.

Checking what this device can do…

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Nothing is uploaded. Just open it and start.

A tape measure in your phone’s camera

Free, no sign-up, no app. On an Android phone, measure lengths and areas in augmented reality by tapping from one end to the other. On any device, measure from a photo with a bank card or a sheet of paper for scale. Nothing you point the camera at is uploaded.

Live AR tape measure

Tap from end to end on the floor, a table or a wall.

Areas too

Tap the corners of a floor or wall for its area and perimeter.

Measure from a photo

Works on any device, with a card or paper for scale.

Metric or imperial

Centimetres and metres, or inches and feet with quarter inches.

Keep the numbers

Copy the list, or save the photo with its lines and lengths.

Nothing uploaded

The camera picture never reaches this page or any server.

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Frequently asked questions

How do I measure with the camera?
Press Start measuring and allow the camera. Move the phone slowly so it finds the floor, a table or a wall; a ring appears on the surface. Aim the dot at one end of what you want to measure and tap, then at the other end and tap again. The length appears on the line and in the list. Switch to Area and tap each corner to measure a floor or a wall, then press Finish.
Which phones can use live AR?
Android phones with Chrome and Google Play Services for AR (most phones from the last few years), and Meta Quest headsets. iPhone and iPad browsers don't give websites this kind of AR yet, so on those use measuring from a photo, or Apple's built-in Measure app.
How accurate is it?
Usually within a centimetre or two over a metre or so, a little less exact over long distances. It's best on surfaces with some texture in good light; plain white walls and shiny floors are harder for the phone to track. For anything that must fit exactly, check with a tape measure.
How does measuring from a photo work?
Take a photo straight on with something of known size lying flat in the same area, like a bank card (85.6 mm wide) or a sheet of A4 or Letter paper. Draw a line along it first, pick what it is, then draw along whatever you want to measure. Everything is scaled from that first line, so it's right for things in the same flat area as the reference and photographed from straight in front.
Is the camera picture uploaded?
No. In live AR the browser itself handles the camera and gives this page only the positions of surfaces, never the picture. A photo you measure is opened on your device and isn't sent anywhere. Only your choice of units is remembered, in this browser.

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