Electrical & Batteries calculators
6 free toolsElectricity calculators: watts to amps, inverter battery backup time, EV charging cost and more.
Electricity Cost CalculatorAdd your appliances with their wattage, hours of use per day and quantity to see how many kWh they use and what they cost per day, month andElectrical & BatteriesEV Charging Cost CalculatorWork out how much it costs to charge your electric car at home or at a public charger. Enter battery size, start and end %, electricity pricElectrical & BatteriesInverter Battery Backup CalculatorFind out how many hours your inverter battery will run your fans, lights, TV and other appliances — or what battery size (Ah) you need for tElectrical & BatterieskVA CalculatorConvert between kVA, amps and kW for single-phase and three-phase systems at any voltage. The calculator also gives real power, reactive powElectrical & BatteriesSolar Panel CalculatorEnter your monthly or yearly electricity use and your location’s peak sun hours to find the solar system size in kW, how many panels you neeElectrical & BatteriesWatts to Amps CalculatorConvert power in watts, kilowatts or horsepower to current in amps for DC, AC single-phase and AC three-phase circuits. Includes power factoElectrical & Batteries