Storage / delivery
Video bitrate and file size calculator
Plan an upload, card, or delivery limit before you export. Switch between estimating a file size and solving for the total bitrate that fits a size cap.
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Browser-local toolVC / VID
Production notes
What this result means
Calculate estimated video file size from duration and bitrates, or find the bitrate available for a target file size. Results are intended for planning and convenience; confirm critical values in your editing, encoding, or delivery system.
Useful for
- Sizing review files before upload
- Finding a bitrate for a platform size cap
- Estimating storage for a batch of exports
Assumptions
- Bitrates are treated as constant averages over the full duration.
- Decimal units use 1 GB = 1,000,000,000 bytes; GiB uses 1,073,741,824 bytes.
- The total includes the entered video and audio streams only.
Limits & checks
- Variable-bitrate encodes can finish above or below the estimate.
- Container, subtitle, metadata, and muxing overhead are not included.
- Always leave headroom when a delivery limit is strict.
FAQ
Before the final export
Why is the exported file a different size?
Most encoders vary bitrate by scene complexity, and containers add overhead. Treat the result as a planning estimate.
Does Mbps mean megabytes per second?
No. Mbps is megabits per second. Eight bits make one byte.
Should audio bitrate be included?
Yes. Enter the combined bitrate of all audio tracks that will be muxed into the file.