Essential CCTV Tools & Software for Surveillance Planning
Explore free CCTV calculators, open-source VMS/NVR software, design tools, and alarm/access-control solutions to plan and secure your surveillance system.
Quick CCTV Calculators
Use the tools below to estimate your CCTV storage, lens requirements, and more!
Storage Calculator
Estimate how much disk space you need for your cameras.
Lens Calculator
Find the perfect lens focal length and angle of view.
WD Storage Estimator
Western Digital’s own surveillance storage calculator.
Additional CCTV Tools & Software
Port Forwarding Test
Test your network ports for remote camera access.
IPv4 Addresses & Subnets
Calculate subnet masks and available host addresses.
Viewing Angle Calculator
Determine your camera’s field of view based on lens.
Camera Settings for Identification
Find the right resolution and pixels per foot to ID subjects.
Fresnel Zone Calculator
Calculate clear line-of-sight requirements for wireless links.
Hikvision Calculator Tool
Storage, bandwidth, and device planner by Hikvision.
CP Plus HDD Calculator
Estimate recording days per hard drive capacity.
ZoneMinder
Open-source video surveillance management system.
iSpyConnect
Remote camera viewing and alert platform.