Free Calculators
Plan electrical loads, cable sizing, CCTV storage and battery backup for your home or office.
CCTV Storage Calculator
Estimate recording storage for analog DVR and IP NVR cameras.
Open calculatorElectrical Load Calculator
Add appliance watts and quantities to estimate load and current.
Open calculatorCable Size Calculator
Screen cable size using load, length and voltage drop.
Open calculatorMCB / DB Selection Calculator
Check breaker capacity and plan distribution-board space.
Open calculatorUPS / Inverter Battery Backup Calculator
Estimate battery Ah and inverter capacity for home and office backup.
Open calculatorThese tools provide planning estimates. Final equipment selection and installation require professional verification.