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Video file size from bitrate calculator
Estimate video file size from average video and audio bitrates, duration and container allowance.
On this page
Estimated file size626.69MB
Estimated binary size597.66MiB
Calculator controls
How to calculate
Estimate video file size from average video and audio bitrates, duration and container allowance.
Estimated file size =
(v+a/1000)*t*60/8*(1+o/100) MBEstimated binary size =
(v+a/1000)*t*60/8*(1+o/100)/1.048576 MiBWorked example
- Video bitrate (Mbit/s): 8
- Audio bitrate (kbit/s): 192
- Duration (min): 10
- Container allowance (%): 2
- Estimated file size: 626.69 MB
- Estimated binary size: 597.66 MiB
Assumptions and limits
Bitrates are averages. Variable bitrate, multiple tracks, metadata and container structure change actual size; resolution alone does not determine it.
Results are rounded for display; calculations use unrounded values. Read our calculation methodology.
Understanding the result
Estimate video file size from average video and audio bitrates, duration and container allowance. One byte contains eight bits. MB uses one million bytes, while MiB uses 1048576 bytes.
When this tool is useful
One byte contains eight bits. MB uses one million bytes, while MiB uses 1048576 bytes.
Understanding your inputs
| Input | Example |
|---|---|
Video bitrate (Mbit/s) v | 8 |
Audio bitrate (kbit/s) a | 192 |
Duration (min) t | 10 |
Container allowance (%) o | 2 |
Frequently asked questions
What does this model leave out?
Bitrates are averages. Variable bitrate, multiple tracks, metadata and container structure change actual size; resolution alone does not determine it.
How do I reproduce the example?
Enter the displayed example values in their labelled units. Apply the formula before rounding; change one input at a time to compare scenarios.