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Interactive CCTV Storage & Retention Simulator
Camera previews use sample footage, not your own cameras. Calculations work even when a video is unavailable.
The browser streams the original Wikimedia Commons media. If a remote file is blocked or unavailable, the approved static CCTV poster stays underneath as a fallback.
Choose a disk size and camera count, then set the resolution, codec and frame rate. These settings suggest a bitrate; you can also enter your own bitrate using the slider.
Compare continuous recording with motion recording, add audio, and select how many days of footage you want to retain. Run the simulation to see storage fill and overwriting begin.
GB per day = total average Mbps × 10.8
Retention days = storage in GB ÷ GB per day
The model uses decimal storage (1 TB = 1,000 GB). Motion mode reduces video by the selected activity percentage. Audio adds 0.064 Mbps per camera continuously. Actual disk overhead and variable bitrate can change retention.
No. The camera previews are sample clips streamed from Wikimedia Commons, with image fallbacks. They are illustrative and do not affect the calculation. No camera access is requested.
The calculator changes its suggested bitrate when you select H.264 or H.265. Storage depends on the actual bitrate your cameras record; adjust the bitrate slider to match your system.