How To Check Total Capacity of Your iPhone’s Internal Storage

Your iPhone’s storage capacity determines how many apps, photos, videos, and files you can store locally on the device. Checking your iPhone’s total storage capacity is important to understand how much data it can hold.

There are a few easy ways to check your iPhone’s total internal storage capacity. Let’s explore the methods.

Use iPhone Settings to Check Capacity

The quickest way to check your iPhone’s total storage capacity is through the Settings app:

  1. Open the Settings app on your iPhone
  2. Tap “General”
  3. Tap “About”
  4. Scroll down and look for “Capacity”
  5. The number next to “Capacity” shows your total iPhone storage in GB

For example, if you have an iPhone 12 with 128GB capacity, it will show “128GB” next to Capacity.

The About screen also shows how much storage is still available out of the total. So you can quickly see both your total capacity and free space.

Check Capacity Through iTunes or Finder

If your iPhone is connected to your computer, you can also check its capacity through iTunes on Windows or the Finder app on Mac:

  1. Connect your iPhone to your computer via USB
  2. Open iTunes on Windows or the Finder app on Mac
  3. Select your iPhone from the sidebar
  4. A storage usage bar will appear showing total capacity and free space

Move your mouse over the bar to see a tooltip with your iPhone’s full storage details including total capacity.

Use IMEI Number to Check Capacity

Every iPhone has a unique 15-digit IMEI number that identifies it on cellular networks. You can use an IMEI lookup tool to identify your iPhone’s capacity.

To find your iPhone’s IMEI number:

  • Dial *#06# on your iPhone and note down the 15-digit IMEI number
  • Or check the SIM card tray for the IMEI number

Once you have the IMEI number, visit a site like and enter the IMEI number. The lookup results will include details on your iPhone’s storage capacity.

Check Storage From Original Receipt

If you still have the original receipt for when you purchased your iPhone, it will likely show the iPhone’s storage capacity.

The receipt will have details like “iPhone 12 128GB” showing both the iPhone model and storage size.

So if you’re unsure of the capacity, double check your purchase receipt.

Tips for Managing iPhone Storage

Now that you know how to check your iPhone’s storage capacity, here are some tips for managing your storage effectively:

Delete Unused Apps

Apps can take up a lot of storage space on your iPhone, especially large games. Periodically review your apps and delete any unused ones.

In Settings > General > iPhone Storage, you can see which apps are using the most space. Delete the data-heavy apps you no longer need.

Use iCloud Photo Library

Enable iCloud Photo Library in your iCloud settings. This will safely store all your photos and videos in iCloud rather than locally on your iPhone.

You can still view your photos and videos in the Photos app without them taking up iPhone storage. Only download specific images as needed.

Stream Music/Videos

Rather than storing your entire music and video collection locally, consider using streaming apps like Spotify, YouTube Music, Netflix or Apple Music.

Streaming allows endless content without filling up your storage. Download only your most-played media files for offline playback.

Back Up Your Data

To safeguard your data, make sure you have regular iPhone backups via iCloud or iTunes. Backups give you a safety net in case you need to erase your iPhone to free up space.

You can restore from a backup to get your data back while keeping storage optimized.


Checking your iPhone’s storage capacity helps give you a better understanding of how much data it can hold.

Use the Settings app, iTunes/Finder, IMEI lookups or your original receipt to view your iPhone’s maximum storage.

With storage information in hand, you can better manage your apps, photos, videos and files to avoid filling up your iPhone. Use iCloud backups as a fallback in case you need to wipe your device to free up space.

Following these iPhone storage tips will ensure you make the most of your capacity for years to come.