MP3 Bitrate Guide: 128, 192 or 320 kbps

Bitrate is the data used per second of audio. Double the bitrate and you double the file.

Bitrate4-minute file
320 kbps9.6 MB
192 kbps5.8 MB
128 kbps3.8 MB
64 kbps1.9 MB
File size growing at 128, 192 and 320 kbps

For speech, 64 to 96 kbps is usually enough. For music from YouTube, start at 192 kbps. Go higher only if your device has space to spare, because the source sets the upper limit on quality.

YTMP3 · YouTube to MP3 · YouTube to MP4 · FAQ