WAV to M4R Converter
Convert WAV audio files into M4R (iPhone ringtone format). The right path when you have a high-quality WAV recording or studio export and want to make it a custom iPhone ringtone or alert sound.
Drop your WAV file here or click to browse
WAV (.wav) · Max 20 MB
Free — 10-second preview, 5 conversions/month. Upgrade for unlimited
What is WAV?
Uncompressed audio format. Perfect quality with no data loss. Standard for music production and professional audio work.
What is M4R?
iPhone ringtone format — identical to M4A (AAC in MP4 container) but with the .m4r extension iOS uses to identify ringtones. Must be ≤30-40 seconds for iOS to accept it as a ringtone.
Why Convert WAV to M4R?
M4R is Apple's iPhone ringtone format — AAC audio in an MPEG-4 container with the .m4r extension that iOS recognizes as a ringtone. WAV files (uncompressed PCM audio) are the highest-quality source you can convert from, ensuring the ringtone preserves every detail of the source recording. The conversion re-encodes the uncompressed audio as AAC and wraps it in the M4R container. Critical: iOS requires ringtones to be 30 seconds or shorter (40 seconds for some iOS versions). If your WAV is longer than that, use the AudioUtils [audio cutter](/audio-cutter) first to trim it to the right segment. The conversion itself is fast and runs entirely in your browser — your WAV file never leaves your device.
Who Uses This Converter
Studio recording as iPhone ringtone
Made a custom sound or voice clip in a DAW? Export as WAV, trim with Audio Cutter, convert to M4R for use as a personal iPhone ringtone.
Royalty-free sound effects
Download royalty-free sounds as WAV (Freesound, ZapSplat, Pixabay). Trim and convert to M4R for distribution-friendly custom ringtones.
Field recording as alert sound
Capture an ambient sound, nature recording, or voice memo at high quality (WAV), then convert to M4R for a unique custom notification sound.
Podcast sting / intro as ringtone
Use your podcast's musical sting or intro stab (WAV from your audio editor) as a personalized iPhone ringtone.
Frequently Asked Questions
What bitrate is the M4R output?
Default 256 kbps AAC inside the M4R container — well above the audible-threshold ceiling for iPhone speakers. The output sounds essentially identical to the source WAV for any practical iPhone playback scenario. For shorter file size with no audible difference on iPhone, 128 kbps is plenty.
Why not just keep it as WAV for the ringtone?
iOS doesn't accept WAV as a ringtone format. Only M4R is recognized as a ringtone via the standard sync workflow. The conversion to M4R is required, not optional. AudioUtils handles it in seconds.
Will the conversion preserve audio quality?
Effectively yes for ringtone use. WAV is lossless; the conversion to AAC introduces a single generation of lossy compression. At 256 kbps AAC, the result is sonically transparent for nearly all listeners on iPhone speakers (which have limited frequency response and dynamic range to begin with). The audible difference between source WAV and 256 kbps AAC M4R on an iPhone speaker is essentially zero.
How long can my ringtone be?
Maximum 30 seconds (40 seconds on some iOS versions) for iOS to accept the M4R as a ringtone. If your WAV is longer, trim it with the audio cutter first — pick the 25-30 second segment you want as your ringtone, then convert.
How do I sync the M4R to iPhone?
Modern macOS: connect iPhone via USB, open Finder, click iPhone in sidebar, General tab, drag the .m4r file onto the iPhone icon. The ringtone appears in Settings → Sounds & Haptics → Ringtone. Older macOS or Windows: use iTunes to drag the file into your library, then sync to iPhone.
Can I use this for text and notification alerts too?
Yes. M4R is Apple's general short-sound format — works for ringtones, text tones, mail alerts, calendar alerts, and other notification sounds. Same conversion process, same 30-40 second duration limit.
Why use WAV → M4R instead of MP3 → M4R?
If you have a WAV source (high-quality recording, studio export, voiceover bounce), starting from WAV avoids a lossy compression step compared to MP3 → M4R (which would re-encode already-lossy MP3 audio). For royalty-free sound effects, recorded voice, or studio output, WAV → M4R produces the cleanest result.