✳ Koldflux derived · CC BY 4.0 · dataset-v2.1

File size vs bitrate target

Per (duration × bitrate × container) computed file-size target. Companion to encoder-quality table.

Origin: Koldflux derivedLicense: CC BY 4.0Refresh: annualGenerated at: 2026-09-19

Methodology

Pure computation: size_bytes = bitrate_kbps × 1000 / 8 × duration_seconds + container_overhead. Container overhead derived from typical muxer behaviour (mp4: 0.5%, mov: 1%, mkv: 1.5%, webm: 1%).

Sources

No external sources referenced.

Related tools

/tools/calculators/video-bitrate

Related datasets

encoder-quality-table

Lead path

Inspect my file against this dataset: /tools/validate

Generate correct output via preset: /tools/calculators/video-bitrate

Create all target versions in the Creator: /tools/pack