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Audio File Size Calculator

Megabytes from kilobits per second and duration.

 

 

MB

About this calculator

Use this calculator to size an audio file from average bitrate and length. Enter kbps and minutes.

MB = kbps × minutes × 60 / 8 / 1000. 320 kbps for 4 minutes is 9.6 MB. Uncompressed CD is about 1411 kbps. Two channels are already in that rate if it is a stereo figure.

kbps: Average bitrate.

Minutes: Length of the file.

MB: Estimated size in megabytes.