How much bandwidth does an IP camera use?
It depends on configured bitrate, codec, resolution, frame rate, motion and scene complexity; the camera or NVR stream settings are the best input.
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Camera Bandwidth Calculator
How many Mbps will your cameras push? Get the total for your network, what the NVR uplink must carry, and what remote viewing demands from your internet upload.
Estimate your load
Typical bitrates (20 fps)
| Camera | H.264 | H.265 |
|---|---|---|
| 2MP / 1080p | ~4 Mbps | ~2 Mbps |
| 4MP | ~7 Mbps | ~4 Mbps |
| 5MP | ~9 Mbps | ~5 Mbps |
| 8MP / 4K | ~14 Mbps | ~8 Mbps |
Three different pipes matter: camera→switch (each stream), switch→NVR uplink (all streams at once — make it gigabit), and internet upload (only for remote viewing). Scene motion and bitrate settings shift real numbers.
Where systems choke
The three bottlenecks
The uplink
Every camera stream crosses the switch→NVR link at once. 16 × 4MP on H.264 ≈ 112 Mbps — a 100 Mbps uplink drops frames.
Internet upload
Remote viewing rides your upload, not download. Two 4K main-streams can flatten a 20 Mbps upload plan.
Wi-Fi cameras
Shared airtime, walls and interference — Wi-Fi cameras drop long before wired ones. Check ours with the Wi-Fi reliability tool.
Answers
Bandwidth questions
How much bandwidth per camera?
4MP on H.265 at 20 fps ≈ 2–4 Mbps; H.264 roughly doubles it; 4K runs 8–16 Mbps on H.264 or 4–8 on H.265.
Does recording use my internet?
No — local NVR recording stays on your LAN. Internet upload only matters when you view remotely.
Why is remote viewing choppy?
Your upload speed likely can't carry the streams. View substreams, lower bitrate, use H.265, or upgrade the upload plan.
Do I need gigabit?
Per-camera ports are fine at 100 Mbps; the switch→NVR uplink should be gigabit above ~8–10 cameras.
Want the network sized for you?
Hi-Tech builds camera networks that don't drop frames — switches, cabling, NVR and remote viewing that just works. Cleveland, Akron, Canton.
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