Enter length, bitrate and channel count, and get the file size plus a verdict against YouTube's own published minimums: 128kbps for stereo, 384kbps for 5.1 surround.
128kbps, stereo, over 10m.
At or above YouTube's stereo minimum of 128kbps.
| Bitrate | File size | Quality |
|---|---|---|
| 96kbps | 7.20 MB | Noticeable compression artifacts. Below YouTube's stereo floor. |
| 128kbps | 9.60 MB | YouTube's stereo minimum. Fine for spoken word. |
| 160kbps | 12.0 MB | Comfortable margin above the minimum. A safe general choice. |
| 192kbps | 14.4 MB | Transparent for most listeners on typical speakers or earbuds. |
| 256kbps | 19.2 MB | Near-transparent, a good floor for music-heavy content. |
| 320kbps | 24.0 MB | The practical ceiling for lossy audio. Diminishing returns above this. |
| 384kbps | 28.8 MB | YouTube's 5.1 surround minimum. |
Enter length, bitrate, and channel count, and we calculate the file size, then check it against YouTube's own published minimums: 128kbps for stereo, 384kbps for 5.1 surround.
A reference table shows common bitrates at the same length, from noticeably compressed at 96kbps up to the practical ceiling for lossy audio at 320kbps.
No, but YouTube's own encode has less to work with, which can show up as audible compression. 128kbps is their published stereo floor, not a hard block.
No.
YouTube doesn't publish one. Treat the stereo figure, 128kbps, as your floor if you're not sure.