Audio Bitrate Calculator
Calculate File Size
Formula
File size (MB) = (bitrate in kbps × duration in seconds × 1000) / (8 × 1024 × 1024).
Frequently Asked Questions
What bitrate should I use for music?
For most listeners, 192 kbps offers good quality. Audiophiles prefer 320 kbps or lossless formats. 128 kbps is acceptable for speech and podcasts.
How big is a 3-minute MP3 at 320 kbps?
A 3-minute MP3 at 320 kbps is approximately 7.03 MB.
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