cat.energy

EV Charging Cost Calculator (Home & Public)

Calculate the cost and time to charge an EV at home or public chargers from battery size, charger power and electricity rate.

Appliance Electricity Cost Calculator

Calculate the cost to run any appliance per day, week, month or year from its wattage, usage hours and electricity rate.

Generator Sizing Calculator (Running & Starting Watts)

Calculate the generator size you need from the running and starting watts of your appliances, with a recommended generator size.