CCTV Storage & Bitrate Calculator
More megapixels and more frames per second mean a bigger bitrate — and a bigger hard disk to keep the days you need. Enter your setup to see the per-camera bitrate, daily footage size and total NVR storage, plus a suggested disk size. Ballpark figures for planning, not a guarantee. Runs in your browser.
Switching to H.265 roughly halves the disk versus H.264, and motion recording can cut it further — at the cost of missing quiet moments. Size the disk for the days you must legally or practically keep, then add headroom.
Planning estimate only — real bitrate swings with scene detail, motion, night IR and the recorder's VBR settings. Buy a size up, and check the NVR's maximum total bitrate can carry all your cameras.
Tune the numbers that drive storage
Related Guides — Deep-dive reading
Data Storage Cost for CCTV in India (2026): Local Disks vs Cloud, and How to Size It
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SecurityRelated Tools — You may also find these useful
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How many days of footage your storage holds, from cameras, bitrate, hours per day and recording mode.
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Estimate how many CCTV cameras you need, the NVR channels, storage in TB for your retention period, and an indicative all-in cost with GST.
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Cloud vs Local