Audio Bitrate Calculator

Calculate file sizes from bitrate, or determine the bitrate needed for a target file size.

Compressed Audio (MP3/AAC/OGG)

Bitrate (kbps)

Duration

Uncompressed Audio (WAV/AIFF)

Sample rate

Bit depth

Channels

Duration

Target File Size

What bitrate do you need to fit a given duration into a target file size?

Target size (MB)

Duration (minutes)

Bitrate Quick Reference

64 kbps - Acceptable for speech/podcasts. 128 kbps - Standard streaming quality. 192 kbps - Good quality, hard to distinguish from CD for most listeners. 256 kbps - High quality streaming (Spotify High). 320 kbps - Maximum MP3 quality. 1411 kbps - CD quality (16-bit/44.1kHz stereo uncompressed).