File Size of a 3-Minute 320 kbps MP3
A 3-minute MP3 at 320 kbps is approximately 7.2 MB.
How to use this tool
- Enter bitrate and duration in the fields above.
- Results update instantly as you type — or click Calculate.
- Read your file size and the full breakdown beneath it.
320 kbps is the highest common MP3 bitrate; a 3-minute song at this quality takes about 7.2 MB.
Frequently asked questions
- How large is a 3-minute MP3 at 320 kbps?
- Approximately 6.87 MB. At 128 kbps the same track would be around 2.75 MB.