How to Back Up Your iPhone to Your Computer

The Two Ways to Back Up Your iPhone

You can back up your iPhone to your computer using either iCloud (Apple's cloud storage) or iTunes/Finder (direct connection to your Mac or Windows PC). iCloud backs up automatically over WiFi once you set it up, while iTunes or Finder creates a one-time backup file on your computer's hard drive that you control. Most people use iCloud, but a direct computer backup is useful if you want a copy stored locally or if you prefer not to rely on cloud storage.

The method you choose depends on what you want: automatic ongoing backups (iCloud), a manual backup you can store offline (iTunes/Finder), or both. Each takes about 5 to 15 minutes to set up the first time, then runs in the background or on demand.

Key Takeaways

iCloud backs up your iPhone automatically over WiFi when the phone is plugged in and locked, and you can restore from it on any device with your Apple ID.
iTunes (on Windows or older Macs) or Finder (on newer Macs) creates a backup file stored directly on your computer that you control and can encrypt with a password.
Both methods back up your photos, messages, settings, app data, and most other content, but not photos already in iCloud Photo Library or music you own.
You need an Apple ID for iCloud backups and a USB cable to connect for iTunes or Finder backups.
You can use both methods at the same time — iCloud for convenience and a computer backup as a second copy.

Setting Up iCloud Backup on Your iPhone

Open Settings on your iPhone, tap your name at the top, then tap iCloud. Scroll down and tap iCloud Backup. Toggle the switch to turn it on. Your iPhone will now back up automatically whenever it is plugged in, locked, and connected to WiFi. The first backup may take an hour or more depending on how much data you have; later backups are faster because only new or changed data is backed up.

You can check how much iCloud storage you are using by going to Settings > your name > iCloud and looking at the storage bar at the top. Apple gives you 5 GB free. If you run out of space, iCloud will stop backing up until you delete old backups or pay for more storage (50 GB, 200 GB, or 2 TB plans are available). To see when your last backup happened, go to Settings > your name > iCloud > iCloud Backup and look at the timestamp at the bottom.

Backing Up to Your Computer with iTunes or Finder

Connect your iPhone to your computer with a USB cable. On a Mac running Catalina or newer, open Finder and click your iPhone in the sidebar under Locations. On a Windows PC or older Mac, open iTunes. Click your iPhone when it appears in the app. Under the Backups section, select This Computer, then click Back Up Now. The backup will take 5 to 15 minutes depending on how much data is on your phone.

By default, this backup is not encrypted. If you want to protect it with a password, check the box labeled Encrypt iPhone Backup (or Encrypt Local Backup on newer Macs) before you start. You will be asked to create a password; write it down because you will need it to restore from this backup later. Once encryption is turned on, it stays on for all future backups to that computer.

Your backup file is stored on your computer's hard drive. On a Mac, it is usually in ~/Library/process Support/MobileSync/Backup. On Windows, it is usually in C:\Users\[Your Username]\AppData\Roaming\Apple Computer\MobileSync\Backup. You do not need to know where it is to restore from it — iTunes or Finder will find it automatically — but knowing the location helps if you want to move it or delete old backups to free up space.

What Gets Backed Up and What Does Not

Both iCloud and computer backups include your messages, contacts, calendar events, notes, reminders, app data, home screen layout, settings, and passwords stored in Keychain. They also back up photos and videos in your Camera Roll, voice memos, and health data. However, neither method backs up photos already stored in iCloud Photo Library (because they are already in the cloud), music or movies you own or have purchased, or apps themselves — the backup stores your app data, and the apps are re-downloaded when you restore.

If you use iCloud Photo Library, your photos are backed up through iCloud automatically and do not need to be included in your iPhone backup. If you do not use iCloud Photo Library and want to keep your photos safe, make sure they are included in your backup by checking that iCloud Backup or your computer backup is running.

Restoring Your iPhone from a Backup

If you get a new iPhone or need to erase and restore your current one, you can restore from either backup method. During iPhone setup, you will see a screen asking how you want to set up your phone. Choose Restore from iCloud Backup or Restore from Mac/PC depending on which backup you want to use. Sign in with your Apple ID if restoring from iCloud, or connect your phone to the computer if restoring from iTunes or Finder. The restore process takes 15 to 45 minutes depending on how much data is being transferred.

If you encrypted your computer backup with a password, you will be asked to enter that password during restore. If you forget the password, you cannot restore from that backup — you will have to set up the phone as new and restore from iCloud instead (if you have an iCloud backup). This is why writing down your encryption password is important.

Troubleshooting Common Backup Problems

If iCloud backup is not starting, check that your iPhone is plugged in, locked, and connected to WiFi. iCloud backup only runs when all three conditions are met. If your phone is plugged in but the screen is on, lock it by pressing the side button and swiping to power off, then wait a few seconds and unlock it again. If you see a message that iCloud storage is full, you need to delete old backups or pay for more storage before a new backup can run.

If iTunes or Finder is not recognizing your iPhone, try unplugging the cable and plugging it back in. If that does not work, restart both your computer and your iPhone. On your iPhone, you may also see a prompt asking "Trust This Computer?" — tap Trust to allow the connection. If you are using a third-party USB cable, try an Apple cable instead, as some third-party cables do not support data transfer.

If a backup is taking much longer than expected, it is usually because your computer is busy or your WiFi is slow. Let it run — do not unplug the phone or close the app. If the backup fails partway through, iTunes or Finder will usually try again automatically the next time you connect.

Using Both Backup Methods Together

You do not have to choose between iCloud and computer backups — you can use both. Many people keep iCloud backup on for convenience and create a computer backup once a month as a second copy stored locally. This way, if something happens to your iCloud account, you still have a backup on your computer, and if something happens to your computer, you still have iCloud.

If you use both methods, your most recent backup from either source can be used to restore your phone. iCloud is faster for restore if you are setting up a new phone on WiFi, while a computer backup is faster if you are restoring to the same phone over USB. There is no downside to having both — the only cost is the iCloud storage if you exceed 5 GB, and the hard drive space on your computer.

Frequently Asked Questions

How often should I back up my iPhone?

If you use iCloud backup, it runs automatically whenever your phone is plugged in and locked, so you do not need to do anything. If you use a computer backup, once a month is reasonable for most people, or more often if you create important photos or documents. You can also create a backup before you update iOS or install a major app update, just in case something goes wrong.

Can I back up my iPhone to multiple computers?

Yes. You can connect your iPhone to different computers and create a backup on each one. Each computer will have its own backup file. However, if you restore from one computer's backup and then later restore from another computer's backup, the second restore will overwrite the first, so keep track of which backup is most recent if you are using multiple computers.

What if I do not have enough iCloud storage?

You can delete old backups to free up space, or you can pay for more storage (50 GB for $0.99 per month, 200 GB for $2.99 per month, or 2 TB for $9.99 per month). Alternatively, you can turn off iCloud backup and use only a computer backup instead, which does not count against your iCloud storage limit.

Will backing up my iPhone use a lot of data on my WiFi?

Yes, the first backup can use several gigabytes of data depending on how much is on your phone. Make sure you are on a WiFi network with a good connection and that you have time for the backup to complete. Later backups are much smaller because only new or changed data is backed up.

Can I back up my iPhone if I forgot my Apple ID password?

You can still create a computer backup with iTunes or Finder without entering your Apple ID password. However, you cannot set up iCloud backup without signing in with your Apple ID. If you forgot your password, you can reset it on Apple's website or through the Find My app on another Apple device.

This guide is for general information only and is not medical, financial, legal, or other professional advice. For decisions specific to your situation, consult a qualified professional. See our Editorial Policy.