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CCTV Bitrate Estimator

Estimate the bitrate a camera will stream from its resolution, frame rate, compression and how busy the scene is.

CCTV Bitrate Estimator

Estimate the bitrate a camera will stream from its resolution, frame rate, compression and how busy the scene is.

Camera resolution

Frame rate (fps)

15 fps is common for surveillance; 25 or 30 fps gives smoother motion.

Compression

How busy the scene is

Results

Estimated bitrate: 2.3 Mbps

Continuous recording per camera per day: 25 GB

A planning estimate: use the camera maker's bitrate when you have it. Smart codecs such as H.265+ can cut a mostly still scene much further. Take the bitrate to the CCTV Storage or Bandwidth calculator.

Building a bigger job?Add these figures to a project, then add results from any of the other calculators. The project becomes one report you can save as a PDF and import again later to make changes.

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How it works

This uses the Kush gauge, a widely used rule of thumb: width x height x frame rate x a motion factor (1 for a quiet scene, 2 for a moderate one, 4 for a busy one) x 0.07 bits per pixel gives the H.264 bitrate. H.265 usually needs 25-50% less for the same picture, so we take 40% off. A day of continuous recording is the bitrate x 86,400 seconds.

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