Video Size and Bitrate Budget
Calculate size or video bitrate with duration, per-track audio and upload time.
Enabling local controls…
1. Source and settings
Local processing only; nothing is fetched, executed, uploaded or persisted. Each field32KiB; complete output1MiB. CPU work uses a cancellable Worker:10s startup/1s processing. Editing clears old results and exports.
Model, limits and sources
Size=(video+audio×tracks)×seconds/8. Mbps/kbps are decimal; MB/GB are decimal bytes, MiB/GiB binary. No container overhead. VBR uses an assumed average, not a fabricated accuracy multiplier. Upload assumes sustained link rate without overhead. Presets are editable examples, not current platform recommendations.
Source controls inspected2026-10-19; model reviewed2026-10-19.
2. Complete result
Choose an operation and process the input.
How to use this tool
Enter local input, review the explicit options and model, then run and export the complete result.
When not to use it
Size=(video+audio×tracks)×seconds/8. Mbps/kbps are decimal; MB/GB are decimal bytes, MiB/GiB binary. No container overhead. VBR uses an assumed average, not a fabricated accuracy multiplier. Upload assumes sustained link rate without overhead. Presets are editable examples, not current platform recommendations.