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Video File Size Calculator

Estimate megabytes and gibibytes from average bitrate and duration.

 

 

MB
GiB

About this calculator

Use this calculator to size a video file from an average total bitrate and running time. Enter megabits per second and minutes.

Size in MB = bitrate (Mbps) × minutes × 60 / 8. GiB = MB / 1024. 8 Mbps for 60 minutes is 3600 MB (about 3.516 GiB). Audio is inside that bitrate if you enter a total rate. Container overhead is small and ignored.

This is an average-rate sketch, not a VBR encode predictor.

Mbps: Average total bitrate in megabits per second.

Minutes: Running time.

MB: Estimated size in megabytes (decimal, bits/8).

GiB: Same size divided by 1024.