How to Measure with iPhone 15: A Step-by-Step Guide

Measuring with your iPhone 15 is a breeze, thanks to its built-in Measure app. This handy tool uses augmented reality (AR) to turn your phone into a virtual tape measure. Whether you’re hanging pictures, buying furniture, or just curious about the size of things, you can get accurate measurements in just a few taps. No need to rummage through your drawers for a traditional tape measure. In this article, we’ll walk you through the steps to measure anything with ease using your iPhone 15.

Step by Step Tutorial: Measuring with iPhone 15

Before we dive into the steps, let’s talk about what we’re aiming for. We’ll be using the Measure app on your iPhone 15, which utilizes AR technology to measure real-world objects. It’s like having a digital tape measure in your pocket!

Step 1: Open the Measure app

Open the Measure app on your iPhone 15.

Once you’ve found the app on your home screen or in your app library, tap to open it. The app uses the camera to sense and analyze the space around you.

Step 2: Follow the on-screen instructions

Point your camera at the object you want to measure and follow the on-screen instructions.

As you point the camera, you’ll see a dot on the screen. Move your iPhone so that the dot starts at the point where you want to start measuring.

Step 3: Tap the ‘Add’ button

Tap the ‘Add’ button to begin measuring from the starting point.

Once you tap ‘Add,’ you’ll lock in the starting point. Now, slowly move your iPhone to where you want the measurement to end.

Step 4: Tap the ‘Add’ button again

Tap the ‘Add’ button again to mark the end point and see the measurement.

The app will display the measurement on the screen. You can take a photo of the measurement by tapping the shutter button, so you don’t forget the size.

After you’ve completed these steps, the Measure app will give you an accurate measurement of the object or distance you’ve scanned. You’ll see the length displayed in either imperial (inches, feet) or metric (centimeters, meters) units, depending on your settings.

Tips for Measuring with iPhone 15

  • Make sure the area you’re measuring in is well-lit so the camera can accurately sense the space.
  • If the app is having trouble detecting surfaces, try moving your iPhone around a bit to give it a better sense of the area.
  • For the most accurate measurements, hold your iPhone steady and move it in a straight line.
  • You can switch between imperial and metric units by tapping the unit label on the screen.
  • Use the ‘Level’ feature within the Measure app to check if surfaces are even.

Frequently Asked Questions

What if my iPhone 15 doesn’t have the Measure app?

The Measure app should come pre-installed on your iPhone 15. If it’s not there, you can download it for free from the App Store.

How accurate is the iPhone 15’s Measure app?

The Measure app is surprisingly accurate, but for critical measurements, it’s always a good idea to double-check with a traditional tape measure.

Can I measure the height of a person with the Measure app?

Yes, you can measure a person’s height. Just point your camera at the person’s feet and move it up to their head, following the on-screen instructions.

What surfaces can I measure with the Measure app?

You can measure almost any surface, but ones with clear edges and good lighting work best for the app to detect accurately.

Can I save my measurements?

Yes, after measuring, tap the shutter button to take a photo with the measurement, which will be saved to your Photos app.


  1. Open the Measure app
  2. Follow the on-screen instructions
  3. Tap the ‘Add’ button to start
  4. Tap the ‘Add’ button again to end
  5. View your measurement


With your iPhone 15, measuring objects and distances is as easy as snapping a photo. The built-in Measure app is a convenient tool that can save you time and hassle when a traditional tape measure isn’t within reach. Remember, while the Measure app is quite accurate, it’s always wise to double-check important measurements with a physical tape measure. So go ahead, measure away, and marvel at how technology has simplified yet another aspect of our lives. Whether you’re a DIY enthusiast, an interior decorator, or just someone who loves playing with tech, the iPhone 15’s Measure app is a feature you’ll definitely want to explore.

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