Tools for the industry.
27 free calculators for engineers, technicians, installers, AV specialists and customers -- the numbers you check on every job, from cameras and storage to power, cabling, networks and AV.
Plan cameras, storage and recording.
CCTV Storage Calculator
Estimate how much recording storage a CCTV system needs from camera count, bitrate, recording hours and retention.
Open calculatorCCTV Lens & Pixel Density Calculator
Check the scene width and pixels per metre a camera gives at a distance, and whether it can detect, recognise or identify a person.
Open calculatorCCTV Network Bandwidth Calculator
Work out the network bandwidth your cameras need to the recorder and for remote viewing.
Open calculatorNVR Hard Drive & RAID Planner
Find how many drives, and what size, you need to reach a storage target at RAID 1, 5, 6 or 10.
Open calculatorCCTV Bitrate Estimator
Estimate the bitrate a camera will stream from its resolution, frame rate, compression and how busy the scene is.
Open calculatorCCTV Mounting Height & Blind Spot Calculator
See where a camera's view starts and ends on the ground, and the blind spot under it, from its height, tilt and lens.
Open calculator4G CCTV Data Usage Calculator
Work out how much mobile data a 4G camera uses in a month from live viewing, event clips and cloud uploads.
Open calculatorSize supplies, batteries, solar and UPS.
PoE Power Budget Calculator
Add up the PoE power your cameras, access points and devices draw, and check it against your switch budget.
Open calculatorAccess Control Power Supply Calculator
Add up the current your readers, locks and controllers draw and size the power supply with headroom.
Open calculatorBattery Standby Calculator
Work out the battery capacity an alarm or access control panel needs to cover its standby and alarm load.
Open calculatorUPS Runtime & Sizing Calculator
Estimate how long a UPS will run your equipment, and the UPS rating you need.
Open calculatorOff-Grid Solar & Battery Calculator
Size the solar panel, battery and charge controller for a camera or 4G router that runs off-grid.
Open calculatorEquipment Running Cost Calculator
Work out the yearly electricity use and cost of cameras, recorders, switches and other equipment that runs around the clock.
Open calculatorPlan copper and fibre runs.
Cable Voltage Drop Calculator
Check the voltage drop on a 12 V or 24 V DC cable run and find the minimum conductor size for your device.
Open calculatorFibre Optic Loss Budget Calculator
Add up fibre, connection and splice losses and check the link against your optics' power budget.
Open calculatorCable Quantity & Box Calculator
Work out how many metres and 305 m boxes of network cable a job needs, and check the longest run.
Open calculatorSubnets, wireless links and transfers.
IP Subnet Calculator
Work out the network, broadcast and usable address range for a camera or access control subnet.
Open calculatorWireless Link Clearance Calculator
Check the clearance a point-to-point wireless link needs over trees and roofs, and its path loss.
Open calculatorData Transfer Time Calculator
Work out how long a backup, footage export or file copy takes over a network link.
Open calculatorSpeaker lines, screens and projectors.
100 V Line Speaker Load Calculator
Add up speaker tap wattages on a 100 V or 70 V line and check the amplifier has enough headroom.
Open calculatorProjector Throw & Screen Size Calculator
Work out the image size a projector gives at a distance from its throw ratio, or the distance for a screen width.
Open calculatorScreen Size & Viewing Distance Calculator
Find the right TV or display size for a viewing distance, or the best seats for a screen you have.
Open calculatorProjector Brightness Calculator
Work out the lumens a projector needs for the screen size, the room light and what the audience is watching.
Open calculatorSize PCs, servers, recording servers and racks.
PC & Server Power Supply Calculator
Add up the processors, graphics cards, drives and fans in a PC or server to size its power supply and UPS.
Open calculatorCCTV Recording Server Calculator
Size a CCTV recording server: network connection, disk writes, storage, drives and memory for your cameras.
Open calculatorVirtual Server Sizing Calculator
Work out the processor cores, memory and storage a virtualisation host needs for its virtual machines.
Open calculatorRack Size, Power & Heat Calculator
Pick the rack height for your equipment and work out its power, current, heat load and UPS size.
Open calculator