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Calixo

Video Bitrate Calculator

Find the bitrate needed to hit a target file size for a given video length.

Inputs

Saved Scenarios

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Bitrate (Mbps)

6.67

Spark says

How it's calculated

Formula

Bitrate (Mbps)=Target Size (MB)×8Duration (seconds)Bitrate\ (Mbps) = \dfrac{Target\ Size\ (MB) \times 8}{Duration\ (seconds)}
8
— Bits per byte

What is the Video Bitrate Calculator?

When exporting video for a specific file size limit (like an upload cap), you need to know the total bitrate to encode at — this calculator works backward from target size and duration.

How to use it

  1. 1 Enter your target file size.
  2. 2 Enter the video's duration in minutes.

Worked examples

500MB target, 10-minute video

Requires about 6.67 Mbps.

Try it

Tips

  • 💡 Reserve some of this bitrate budget for audio (commonly 128-320 kbps) — the remainder is available for video.

Frequently asked questions

Does this bitrate include audio?

Yes — this is the total combined bitrate. Subtract your audio bitrate (e.g. 192 kbps) from the result to get the video-only bitrate budget.