One of the new features in iOS 12 is an augmented reality app called Measure, which Apple has designed to make it easier for you to measure various real-world objects using 3D spatial detection techniques.

measureappinaction

  1. Open up the Measure app.
  2. Follow the on-screen instructions and move your iPhone around the room so that it can get the dimensions of various objects. measureappsetup
  3. Once it's calibrated, denoted by a white dot in a circle, you're ready to start measuring.
  4. To take a measurement, line the white dot up with the corner of an object and then press the "+ button to create an anchor point.
  5. From the anchor point, pan the iPhone over to the other edge of the object. measureappmanual
  6. Press the "+" button again to get the final measurement of the line.

You can continue using this method to get the full dimensions of different objects in your room, with the ability to set multiple anchor points if desired.

Haptic feedback is included in the Measure app, so you'll feel little haptic taps whenever you set an anchor point, for physical feedback. Haptic taps are also included whenever the app detects an obvious stopping point for a measurement, such as the end of a wall.

To clear your anchor points and start over at any time, tap the "Clear" button.

measurementappicons
Once all of your measurements are in place, tap the white camera button to take a photo that displays all of the measurements overlaid on the object you're measuring.

measureappsharebutton
You can also tap on the arrow of one of the measurements to get a pop up with the current readings that you can copy and paste into another app like Messages or Notes.

Measurement Automatic Detection

For certain square-shaped objects that the Measure app detects, the detection of the dimensions will be automatic. To get an automatic measurement, choose a square or rectangular object and hold the iPhone in front of it.

measureappautomaticdetection
If it's going to take an automatic measurement, you'll see a yellow square appear, which you can then tap to get dimensions. If it's not going to do automatic detection, you're going to need to use the tap method to draw individual lines.

Accuracy

The accuracy of the Measure app depends heavily on the precision of where the end points are placed, so there's room for error.

It's great for quick measurements to get an idea of size, but where precise measurements are required, it's probably best to double check with a physical measuring method.

Level Feature

In iOS 12, the Measure app is also home to the Level feature that lets you use the iPhone to detect whether a surface is level. Prior to iOS 12, the Level feature was in the Compass app, so it's not new, just relocated.

measureapplevel
To use it, tap over to the level portion of the app, which is located at the bottom. Hold the iPhone in either portrait or landscape orientation with no case and balance it on an object such as a picture frame to get a reading.

If you tap the screen when using the level app, you can set a 0 degree reference angle to make measurements from, and laying the iPhone flat allows it to be used as a bubble level.

Related Forum: iOS 12

Top Rated Comments

nerfjames Avatar
60 months ago
It keeps saying 4.5 inches, but I swear it’s 8.
Score: 27 Votes (Like | Disagree)
xflashx Avatar
60 months ago
Apparently someone at Macrumors really loves to make tutorials :D
Score: 12 Votes (Like | Disagree)
happygodavid Avatar
60 months ago
This is one of those features that won’t work perfectly at first. We will complain. Then, in 10 to 20 years when it’s the only scientifically accurate way to measure things, we will take it for granted and wonder how we ever knew the size of anything. This is huge. (No pun intended.)
Score: 5 Votes (Like | Disagree)
carlfleming Avatar
60 months ago
The ability to modify your anchor points is very snazzy. Just hold and drag a point and while you’re doing that your device will zoom in a little to give you a little more precision.
Score: 5 Votes (Like | Disagree)
jedwards87 Avatar
60 months ago
Measurements seem very off, like ~20-30% off (running iPhone SE)
I have been quite impressed with the measurements I get on my iPhone X. I haven't used it a lot but I have probably tested it with about 10 or so things. Seems accurate enough to be useful for general measurements.
Score: 4 Votes (Like | Disagree)
Swampthing Avatar
60 months ago
I realize MacRumors is trying to stay relevant and talk about everything Mac. But I have a problem with constantly explaining how to use beta features.

New features need to be intuitive. That’s part of Apple’s whole philosophy. But if we have a website constantly jumping in to say look look this is how you use it, that defeats the purpose. Testers will be less likely to notify Apple that they couldn’t figure out a feature on their own.

This needs to be part of the beta testing process. When it’s deployed, that will ensure the feature is much more intuitive for the user. There is a reason why Apple never includes instruction manuals.

Apart from that, constant detailed articles about things that aren’t even released yet and which might change significantly before release seem pointless.

Yes, people want to know about beta features. But there’s a line between being informational and providing fully detailed instructional tutorials, and I think it’s crossed waaaay too often here. How about waiting until we have a released product to provide that information?
Score: 4 Votes (Like | Disagree)

Popular Stories

iOS 16

iOS 16.3 Now Available for Your iPhone With These 4 New Features

Friday February 3, 2023 1:13 pm PST by
Apple released iOS 16.3 in late January following nearly six weeks of beta testing. The software update is available for the iPhone 8 and newer, and while it is a relatively minor update, it still includes a handful of new features, changes, and bug fixes. Below, we've recapped new features in iOS 16.3, including support for physical security keys as a two-factor authentication option for...
HomePod 2 White and Midnight Feature Purple Blue

Apple Explains Why HomePod Was Released Again, Wi-Fi 4 Limitation, and More

Thursday February 2, 2023 7:57 am PST by
Apple's VP of hardware engineering Matthew Costello and product marketing employee Alice Chan recently spoke with Men's Journal and TechCrunch about the new second-generation HomePod in wide-ranging interviews about the smart speaker. Apple discontinued the original full-size HomePod in March 2021 after multiple reports indicated that sales of the speaker were lackluster, but Chan told Men's ...
Apple Silicon Teal Feature

The Next Big Apple Silicon Device May Not Be a Mac or iPad

Wednesday February 1, 2023 3:57 am PST by
Apple's next device with an Apple silicon chip may not be a Mac or an iPad, but rather an advanced external display, according to recent reports. The display, which is rumored to arrive this year, is expected to sit somewhere between the $1,599 Studio Display and the $4,999 Pro Display XDR – but more exact information about the device's positioning and price point is as yet unknown. While ...
iOS 16

Apple Preparing iOS 16.3.1 Update for iPhone as Wait for iOS 16.4 Beta Continues

Thursday February 2, 2023 6:41 am PST by
Apple appears to be preparing an iOS 16.3.1 update for the iPhone, based on evidence of the software in our website's analytics logs this week. It's unclear when the update will be released, but it will likely be available at some point in February. The same logs have accurately foreshadowed the release of several previous updates, including iOS 16.0.3 and iOS 16.1.1 most recently, so they...
General iOS 16 Feature Yellow

Five New iOS Features Coming to Your iPhone Later This Year

Tuesday January 31, 2023 11:58 am PST by
Apple has previously announced several upcoming iOS features that are expected to be added to the iPhone this year. Some of the features could be introduced with iOS 16.4, which should enter beta testing soon, while others will arrive later in the year. Below, we have recapped five new iOS features that are expected to launch in 2023, such as an Apple Pay Later financing option for purchases ...
Apple Pay Later Quick Green Feature

Apple Pay Later Launching 'Soon'

Thursday February 2, 2023 2:10 pm PST by
The Apple Pay Later service that Apple has in the works is set to launch "soon," Apple CEO Tim Cook told CNBC ahead of today's earnings call for the first fiscal quarter of 2023. Cook said that Apple employees are beta testing the Apple Pay Later feature, which will help Apple boost services revenue. "It will be launching soon," Cook said. Apple Pay Later was first previewed at the...
webkit vs chromium feature

Google Working on Browser for iOS That Would Break Apple's App Store Rules

Saturday February 4, 2023 1:30 am PST by
Google's Chromium developers are working on an experimental web browser for iOS that would break Apple's browser engine restrictions, The Register reports. The experimental browser, which is being actively pursued by developers, uses Google's Blink engine. Yet if Google attempted to release it on the App Store, it would not pass Apple's App Review process. Apple's App Store rules dictate...