CCTV Cameras, Cabling & DVR Calculator
Frequently asked
How do you calculate CCTV storage requirement?
Multiply number of cameras by storage per camera per day (based on resolution) and recording days. This calculator converts total GB to TB and rounds up.
How many DVR/NVR channels do I need?
The number of channels must be equal to or greater than the number of cameras. Choose a DVR/NVR with at least as many channels as cameras. This calculator computes the units needed based on selected channel capacity.
What cable is used for CCTV installation?
Coaxial cable (RG59/RG6) for analog HD cameras, Ethernet cable (Cat5e/Cat6) for IP cameras. This calculator estimates total cable length by multiplying per-camera length by camera count.
Which related calculators pair well with the CCTV Calculator?
People planning security often also need Access Control Calculator if available. For now, this CCTV calculator is standalone and quotation-ready.