How to use the Measure app on your phone | Asurion
Smartphones can do a lot more than call and text, like helping you measure your space. Whether you’re hanging a picture or buying a new couch, your phone’s built-in Measure app can help. But if you’ve never used it, getting started may feel confusing. We’ll walk you through how to use the Measure app, explain what phones it works on, and share tips if it’s not working right.
At Asurion, we help millions of people get the most out of their tech. From setting up new phones to fixing app issues, our experts have the know-how to guide you through every step.
What is the Measure app?
The Measure app turns your phone into a virtual tape measure. It uses your phone’s camera and built-in sensors to calculate the dimensions of objects or spaces.
What it does
The app lets you:
- Measure straight lines and objects.
- Estimate the size of furniture or rooms.
- Check if something is level.
- Take and save screenshots of measurements.
Which phones does it work on?
The Measure app comes pre-installed on most iPhones running iOS 12 or later. It works best on models with advanced sensors, like the iPhone 12 Pro or newer.
How to use the Measure app on iPhone
Here’s how to get started with the iPhone Measure app.
- Open the Measure app.
- Move your phone around so it can scan the area.
- A circle with a dot will appear. Aim it at the start point of what you want to measure.
- Tap the + button to set the starting point.
- Slowly move your phone to the end point.
- Tap the + again to finish the line. The measurement will show on your screen.
- Tap the number to copy or share it.

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Using the level feature
Your iPhone can also double as a level:
- Open the Measure app.
- Tap Level at the bottom.
- Place your phone on a surface or hold it against a wall.
- The screen will turn green when the surface is level.
Troubleshooting tips if the Measure app isn’t working
If your Measure app isn’t behaving the way it should, try these simple fixes.
- Restart your phone. Turning your phone off and back on can fix minor glitches.
- Update your OS. Make sure your phone’s software is up to date.
FAQs
What is the Measure app used for? It’s used to measure the length, width, or height of objects or spaces using your phone’s camera.
Is the Measure app accurate? It’s fairly accurate for casual use but may not be perfect for detailed work like building or design projects.
Why is the Measure app not showing up on my iPhone? You may need to update your iOS or download it again from the App Store.
Does the Measure app work without internet? Yes, once it’s installed, it works offline by using your camera and phone sensors.
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