NVR Channel Calculator
Buy a recorder that fits today and leaves room to grow. Enter how many cameras you run now, how much headroom you want for later, and the per-camera bitrate to get the recommended NVR channel count, the spare channels you keep free, and the total incoming bandwidth the recorder must be rated to record. Planning figures; runs in your browser.
Planning estimate only — channel count is just one limit. Incoming-bandwidth, per-channel resolution and the number of HDD bays also cap a recorder, and PoE-NVRs cap the ports that supply power too. Verify every figure against the product datasheet before you buy.
Turn the channel count into a system
Related Guides — Deep-dive reading
CCTV NVR vs DVR in India (2026): Choosing the Right Recorder
The recorder is the brain of a CCTV system. What separates a DVR from an NVR, how each one wires up, why channel count and total bandwidth both matter, and how to pick the box that fits your cameras and your Indian home.
SecurityCCTV Installation Planning in India (2026): From Site Survey to a Camera Plan
The measure-twice, install-once master guide: walk your plot, list what you are protecting, sketch a plan, mark every camera position, then size power, network, permissions and budget before a single bracket is drilled.
SecurityInternet and Network Readiness for Home Security in India
Before you buy a single camera, plan the network under it: enough upload bandwidth for cloud and remote viewing, wired PoE for the cameras that matter, a segregated IoT network so a hacked gadget cannot reach your laptop, and secure remote access that never exposes your DVR to the open internet.
SecurityRelated Tools — You may also find these useful
CCTV Recorder Selector
Camera type, count, PoE need and resolution to the right recorder — DVR, NVR, NVR-with-PoE or hybrid — with channels, HDD bays and PoE ports.
Recorder SelectorCCTV Bandwidth Calculator
Total network bandwidth an IP CCTV system needs, camera-to-recorder on the LAN and the internet upload for remote viewing.
BandwidthCCTV Camera Coverage & Count Calculator
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.
CCTV Calculator