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Utility calculators for sysadmins, DevOps, network engineers, and IT professionals. Calculate RAID storage and fault tolerance, UPS battery runtime, server rack space & power, CCTV video storage, subnet masks, and byte sizing.
Calculation.zone — Printable Estimate Sheet
10/24/2026CCTV Storage & Bandwidth
CCTV Storage & Bandwidth
Calculate hard drive storage in TB and network bitrate for surveillance cameras.
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Camera & System Settings
Configure camera count, resolution, compression, and retention duration.
cameras
1 cameras64 cameras
days
7 days90 days
Storage & Bandwidth Requirements
4.56 TBTotal Storage Required
4.56 TB
Holds 8 cameras for 30 days (~4,562 GB)
Network Bandwidth
14.1Mbps
(1.76 MB/s total)
Per Camera Bitrate
1.76Mbps
~19.0 GB / day / cam
Drive Recommendations
| Suggested Drives: | 2 × 4 TB Surveillance HDDs |
| Drive Grade: | WD Purple / Seagate SkyHawk |
| RAID 5 Parity: | 3 Drives for single-disk tolerance |
Note: If your total camera bitrate exceeds 80 Mbps, ensure your PoE switch has Gigabit uplink ports to prevent network packet drops.