Home Energy Audit (by Appliance)
List your appliances with their power and daily hours to see total energy use, cost and your biggest energy consumers, free online.
About this calculator
Energy per day (kWh) = watts × hours ÷ 1000. Enter each appliance as "name: watts, hours per day" (for example "Fridge: 150, 8"). The tool totals daily, monthly and yearly use, cost and CO₂ (about 0.4 kg per kWh on an average grid), and ranks the top consumer.