CCTV & Networking Calculators
Storage, bandwidth and subnet calculators for installers and network admins.
IPv4 Subnet Calculator
Find the network address, broadcast address and usable host range for an IP address and subnet mask — the essential subnet-boundary calculation for network configuration.
CIDR Calculator
Find subnet details from a single CIDR block like 192.168.1.0/24 — parsing the compact notation networking professionals use to describe IP address ranges.
CCTV Storage Calculator
Estimate how much storage an NVR/DVR needs for a given camera count, bitrate and retention period — the core sizing calculation behind every CCTV storage purchase decision.
IP Subnet Calculator
Find the number of usable hosts and total addresses for a given CIDR prefix — a quick reference for the relationship between subnet size and host capacity.
Camera Field of View Calculator
Find a camera's horizontal field of view from its sensor width and lens focal length — the two physical specifications that together determine how wide a scene a camera actually captures.
IPv6 Address Calculator
Expand a shorthand IPv6 address to its full form, or compress it to canonical shorthand — untangling the compact notation used to make IPv6's much longer addresses manageable.
CCTV Camera Coverage Calculator
Estimate how many cameras are needed to cover a given area — a starting-point planning figure before a professional site survey refines the actual layout.
NVR Retention Days Calculator
Find how many days of footage a given amount of NVR/DVR storage will hold — the inverse of storage sizing, useful for checking existing capacity against a retention requirement.
Network Bandwidth Calculator
Find the total network bandwidth needed to stream multiple cameras or devices simultaneously — the core sizing calculation for any link carrying sustained, continuous traffic.
PoE Power Budget Calculator
Check whether a PoE switch's power budget can support all connected devices — the total-power planning check that prevents devices from silently failing to power on.
Wi-Fi Signal Loss (FSPL) Calculator
Estimate free-space path loss for a wireless link at a given distance and frequency — the theoretical minimum signal attenuation before any real-world obstacles are considered.
PoE Cable Voltage Drop Calculator
Estimate voltage drop across a PoE/Ethernet cable run for a given wire gauge, current and length — a critical check for reliably powering cameras and access points over long cable runs.
SMPTE ST 2110 Bandwidth Calculator
Estimate the IP network bandwidth an uncompressed SMPTE ST 2110-20 video essence flow needs, from resolution, frame rate, chroma subsampling and bit depth.
Fiber Optic Latency Calculator
Estimate the one-way propagation delay of a fiber optic link from its distance — the hard physical floor on latency that no network optimization can beat.