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Video File Size Calculator

Estimate video file size from bitrate, audio bitrate, and duration.

Processed in your browserThe estimate is calculated locally from the values you enter.

Plan storage before encoding

Combine bitrate and duration to estimate the resulting video file size.

Methodology

How this tool works

Video Mbps and audio Kbps are converted to bits per second, multiplied by duration in seconds, and divided by eight. Results use decimal MB and GB, matching common network bitrate notation.

Tested examples

01

Input10 Mbps video, 128 Kbps audio, 10 minutes

Expected resultApproximately 759.6 MB using decimal units.

02

Input5 Mbps video, no audio, 2 minutes

Expected resultApproximately 75 MB using decimal units.

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