Energy
Energy tools estimate what electricity, appliances and EV charging actually cost using the rates you provide. They are planning calculators, not utility bills — assumptions such as tariff and usage are listed on each page.
Tools in this category
5 tools
Electricity Cost
Estimate energy (kWh) and cost from power in watts or kW, hours of use and price per kWh.
Appliance Energy Cost
Estimate daily and monthly kWh and cost for an appliance from watts, hours per day, days per month and price.
EV Charging Cost
Estimate battery energy added, grid energy and charging cost from capacity, start/target %, price and efficiency.
EV Charging Time
Estimate ideal charging time from battery size, start/target % and charger power. Real sessions are often slower.
kWh Cost
Multiply kilowatt-hours by your electricity price to get a total cost.