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CCTV Bandwidth Calculator

Network Sizing · Codec · Uplink Selection

When to use: Size the network uplink and switch capacity for an IP camera deployment. Per-camera bitrate scales with resolution, frame rate, and codec. H.265 roughly halves the H.264 bitrate and H.265+ can save 60–70% on largely static scenes. Add overhead for protocol packaging and bitrate spikes during high-motion events.

Stream Parameters
cams
Protocol + spikes
%
Recommended Uplink
1 GbE
NVR / recorder uplink port
Total Aggregate Bandwidth
19.2
Mbps (0.019 Gbps) with overhead
Results
Per-Camera Bitrate1.00 Mbps
Raw Aggregate16.0 Mbps
With Overhead19.2 Mbps
In Gbps0.019 Gbps
Camera Count16
CodecH.265 (50% saving)
Notes
Bitrates are CBR-equivalent estimates; VBR peaks higher
Size the NVR uplink, not just total — multicast may differ
Reserve switch backplane for full non-blocking throughput
High-motion scenes can double the listed bitrate