YT2MP3 › MP3 bitrate
The source sets the ceiling
YouTube stores the sound of a normal video as compressed audio of roughly 128 to 160 kbps. Every converter starts from that same stream. Encoding it again at 320 kbps doubles the file size, but it cannot bring back detail that the first compression already removed. You would get a bigger file that sounds the same, or very slightly worse, because each lossy step throws a little more away.
What YT2MP3 does instead
| Bitrate | About 128–160 kbps, matched to what YouTube serves |
|---|---|
| Channels | Stereo, as uploaded |
| File size | About 1 MB per minute: a four-minute song is 4–5 MB |
| Players | Any phone, car stereo, laptop or smart speaker that reads MP3 |
Can you hear the difference?
On phone speakers, earbuds and car audio, a 128–160 kbps MP3 from a decent upload is hard to tell apart from the YouTube stream itself. What matters far more is the upload you start from: an official artist video usually sounds clearly better than a re-upload that was recorded off a TV or ripped from another site. Use Preview on the search results to compare before converting.
How big is the file at each bitrate?
Bitrate is simply how many kilobits of sound are stored per second, so the file size follows directly from it. These are the sizes for a four-minute song:
| 128 kbps | about 3.8 MB (roughly 0.96 MB per minute) |
|---|---|
| 160 kbps | about 4.8 MB (roughly 1.2 MB per minute) |
| 320 kbps | about 9.6 MB (roughly 2.4 MB per minute) |
A file labelled 320 kbps made from YouTube audio takes twice the storage and twice the mobile data of a 160 kbps file, while carrying the same sound.
How to check the bitrate of an MP3 you already have
- Windows: right-click the file, choose Properties, open the Details tab and read Bit rate.
- Mac: open Get Info for the track (Cmd+I in Finder); the bitrate appears in the More Info block. The Music app also shows it under Get Info › File.
- Android: many players, VLC among them, show the bitrate in the track's information screen.
A file reporting 320 kbps whose source was a YouTube video was simply re-encoded at a higher number. The original stream decides how it sounds.
Tips for the best-sounding file
- Choose the artist's own channel or the label's "Topic" channel.
- Avoid uploads labelled "slowed", "8D" or "bass boosted" unless that is what you want.
- For live recordings and DJ sets, MP3 covers up to about two hours in one file.
Ready? Go back to the converter and paste your link.
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