The simplest way: use iCloud Music Library

If you have an Apple Music subscription or iTunes Match, turn on iCloud Music Library in your iPhone settings and your iTunes library syncs automatically. Go to Settings > Music > iCloud Music Library and toggle it on. Your songs appear on your phone within minutes, and you can listen offline by downloading them directly to the device.

This method works whether your music came from iTunes purchases, CDs you ripped, or files you added manually. iCloud Music Library treats all of it the same way — it uploads to Apple's servers and makes it available on any device signed into your Apple ID.

If you don't have Apple Music or iTunes Match, this route won't work. You'll need one of the other methods below.

Key Takeaways

  • iCloud Music Library (requires Apple Music or iTunes Match subscription) syncs your entire iTunes library to your iPhone automatically.
  • If you don't subscribe to either service, you can sync music through a USB cable and a Mac or Windows computer running iTunes or Finder.
  • Syncing via cable requires you to choose specific playlists or artists — it doesn't automatically pull your whole library.
  • Downloaded music takes up storage space on your phone, so check how much free space you have before syncing a large library.
  • Music you purchased from the iTunes Store downloads to your phone instantly through your Apple ID, without needing to sync.

Syncing music through a USB cable and your computer

Connect your iPhone to a Mac or Windows computer with a USB cable. On a Mac running macOS Catalina or later, open Finder and click your iPhone in the sidebar. On Windows or older Mac, open iTunes instead.

Click the Music tab, then check the box next to "Sync Music." You can sync your entire library or pick specific playlists, artists, or genres. Choose what you want, then click Apply or Sync. The process takes longer for large libraries — anywhere from a few minutes to an hour depending on how many songs you're moving and your USB connection speed.

This method works without any subscription, but it requires you to physically connect your phone each time you want to add new music. It also erases any music already on your phone that isn't part of the sync selection, so be careful what you choose to sync.

iTunes Store purchases sync automatically

Any song you bought directly from the iTunes Store downloads to your iPhone automatically as long as you're signed in with the same Apple ID. You don't need to sync, subscribe, or connect a cable — it happens in the background over Wi-Fi or cellular data.

Check Settings > Music > Sync Library to make sure this is turned on. If it's off, toggle it on and your purchased music appears within a few minutes. This only covers music you bought from Apple, not music from other sources or files you added to iTunes yourself.

Moving music files you added to iTunes manually

If you added MP3 files or other audio files to iTunes by dragging them in or importing them, iCloud Music Library is the most reliable way to get them onto your phone. The service uploads those files to Apple's servers so they're available on your iPhone without taking up local storage.

If you don't have iCloud Music Library, you must use the USB cable sync method. Connect your phone, select the playlists or artists containing those files, and sync. Manual files won't transfer any other way.

One limitation: iCloud Music Library can only upload files that are in a format Apple recognizes. Very old or unusual audio formats may not work. If a file won't upload, try converting it to MP3 or AAC format using free software like Audacity before adding it to iTunes.

Checking storage space before syncing

Music takes up storage on your phone, so before you sync a large library, check how much free space you have. Go to Settings > General > iPhone Storage and look at the available space at the top. A typical song is 5 to 10 MB, so 1,000 songs takes roughly 5 to 10 GB.

If you're low on space, sync only the playlists or artists you listen to most often. You can also delete music from your phone after syncing — go to the Music app, swipe left on a song, and tap Delete. The song stays in your iTunes library and iCloud Music Library; you're only removing it from this device to free up space.

Troubleshooting music that won't sync

If music appears in iTunes but not on your iPhone after syncing, first check that you're signed into the same Apple ID on both devices. Go to Settings > [Your Name] on your iPhone and verify the account. On your computer, check the iTunes or Finder preferences.

If you're using iCloud Music Library, make sure it's turned on in both places — Settings > Music > iCloud Music Library on your phone, and Preferences > General > iCloud Music Library in iTunes or Finder on your computer. Sometimes toggling it off and back on fixes sync problems.

For USB cable syncing, try disconnecting and reconnecting the cable, then syncing again. If a specific song won't sync, check that the file format is supported (MP3, AAC, FLAC, Dolby Digital, and a few others work; very old or proprietary formats may not). You can also try removing the song from your sync selection and adding it back.

Frequently Asked Questions

Do I need a subscription to get music from iTunes onto my iPhone?

No. Music you bought from the iTunes Store syncs automatically with your Apple ID. For everything else — ripped CDs, imported files, your whole library — you can use a USB cable to sync without paying for a subscription. iCloud Music Library (which requires Apple Music or iTunes Match) is the most convenient option, but not the only one.

Can I sync music wirelessly without a cable?

Yes, if you have iCloud Music Library turned on. It syncs over Wi-Fi automatically. Without iCloud Music Library, you must use a USB cable to sync music from your computer to your phone.

What happens to music on my iPhone if I sync new music from my computer?

Any music not included in your new sync selection gets deleted from your phone. Before syncing, make sure you've selected all the playlists and artists you want to keep. If you're worried about losing something, use iCloud Music Library instead — it adds to what's on your phone rather than replacing it.

Can I sync music from multiple computers to the same iPhone?

Not with USB cable syncing — you can only sync from one computer at a time. If you try to sync from a different computer, it erases the music from the first one. With iCloud Music Library, you can add music from any computer and it all appears on your phone, so this is the better option if you use multiple devices.

Why is some of my iTunes music grayed out on my iPhone?

Grayed-out songs usually mean they're not downloaded to your phone yet. If you're using iCloud Music Library, tap the song to download it. If you're using USB cable syncing, the song may not have been included in your last sync — reconnect and sync again, making sure that song's playlist or artist is selected.