Bitrate calculator

Solve any one of video bitrate, file size, or duration given the other two — with the audio track counted.

bytes = kbps × 1000 × seconds ÷ 8 — fill any two of bitrate, duration, file size.

Leave the quantity you want to solve empty.

Stream-size estimate only — container and audio overhead are not subtracted.

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How to use

  1. Fill two of: total bitrate, file size, duration.
  2. Optionally subtract an audio bitrate.
  3. Read the missing value.

What it supports

Sizes in MB/GB (decimal) up to 10^15 B, bitrates in kbps/Mbps up to 10^7 kbps, duration in h:m:s up to 10^7 s (≈2,778 h). Container overhead (~1–3 %) is not modeled.

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