Audio Bitrate Calculator
How to calculate audio bitrate and file size
- Choose uncompressed audio and set the sample rate, bit depth and channels, or choose compressed audio and enter its bitrate.
- Enter the length of the recording in minutes and seconds.
- The file size appears with the bitrate and the size per minute.
Frequently asked questions
What is the bitrate of a CD?
44,100 samples a second × 16 bits × 2 channels = 1,411.2 kbps, about 10.6 MB per minute.
Why MB and MiB?
MB here is a million bytes, as used by most file managers on Mac and phones and by storage makers; MiB is 1,048,576 bytes, as shown by Windows.
Is a compressed file exactly this size?
Close to it. Constant-bitrate files match the calculation apart from a few kilobytes of tags and artwork; variable-bitrate files vary with the music.