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macrumors bot
Original poster
Apr 12, 2001

Apple's iPhone 12 Pro and iPhone 12 Pro Max boast a neat feature that allows you to measure the height of someone using just the Measure app and the iPhone's camera and LiDAR Scanner. This article and video shows you how.

The capability comes courtesy of the LiDAR scanner that's exclusive to Apple's latest Pro line of smartphones as well as 2020 iPad Pro models. LiDAR is intended for enhanced augmented reality experiences, but the measuring feature is just one unexpected yet highly practical advantage of the scanner.

  1. Launch the Measure app on your iPhone 12 Pro or iPhone 12 Pro Max.
  2. Locate the person whose height you want to measure within the camera's viewfinder. They can be either seated or standing – just make sure their whole body is visible from head to toe within the frame.
  3. Wait a moment, and a line should appear at the top of the person's head with their height measurement.
  4. To take a photo of the measurement, tap the shutter button located immediately right of the central plus (+) button.
  5. To save the photo, tap the screenshot in the bottom-left corner of the screen, tap Done, then choose Save to Photos or Save to Files.
  6. To take the measurement again, simply turn your iPhone away for a moment to reset the height.
That's all there is to it. Note that you can switch the measurement between imperial and metric by going to Settings -> Measure, and selecting your preference under "Measure Units."

Article Link: How to Measure Someone's Height with iPhone 12 Pro
Last edited:


macrumors 6502a
Mar 6, 2008
Adds 2.5” to everyone in my family so my wife thinks that should be her new official height.

Maybe its the shoes? how about measuring barefooted?

For users outside the US, does this give you height in metric? with what precision (cms, mms)?

Im getting a 12 mini so Im curious as I will not be getting this feature...


macrumors 68040
Jul 20, 2011
Just tried this, measuring my daughter, with my 2020 iPad Pro. Worked, and was accurate! Took a few seconds to measure, got a "move further back" message.


macrumors 6502
Jan 2, 2019
Innacurate, gives +/- one inch. It‘s kinda accurate, but if you really want to measure your exact height you should use a stadiometer while standing straight and being barefoot.
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Jun 22, 2020
I can see this being used by agencies or companies to further build profiles on people, adding accurate height to the list of variable data they can aggregate on citizens
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