CCTV Storage Calculator
Size HDDs from camera count, bitrate and retention days.
Open tool →Free Online Tools
CCTV & Networking Calculators
Fifteen free tools our engineers use on real installations — sizing storage, power, bandwidth and IP addressing. No signup, works on mobile.
CCTV Tools
Plan recorders, storage, lenses and camera counts before you buy.
CCTV Bandwidth Calculator
Work out network load for any number of cameras.
Open tool →NVR Channel Calculator
Match cameras to NVR channels and throughput limits.
Open tool →Lens Focal Length Calculator
Pick the right lens for distance and field of view.
Open tool →Networking Tools
Addressing, subnetting, VLANs and PoE power budgets.
PoE Budget Calculator
Check switch power budget against your camera load.
Open tool →IPv4 Subnet Calculator
Subnet mask, CIDR, network, broadcast and host range.
Open tool →IP Range Calculator
Convert address ranges into CIDR blocks and totals.
Open tool →VLSM Planner
Split a network into right-sized variable subnets.
Open tool →VLAN Planner
Plan VLAN IDs, names and subnets for CCTV segments.
Open tool →Wildcard Mask Calculator
Wildcard masks for ACLs and route filtering.
Open tool →IPv4 Binary Explorer
See addresses and masks in binary, bit by bit.
Open tool →Utilities
Everyday helpers for installation and handover work.
MAC Address Lookup
Identify the device vendor behind a MAC address.
Open tool →QR Code Generator
Generate QR codes for Wi-Fi, links and contacts.
Open tool →Password Generator
Strong passwords for NVRs, routers and Wi-Fi.
Open tool →Video Downloader
Save online videos for offline reference.
Open tool →Need a system designed, not just calculated?
Share your site details and we will size cameras, storage and network for you.