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Estimate your household's total annual energy consumption by analyzing all your appliances and their usage patterns. This calculator evaluates the wattage, daily runtime, and quantity of each appliance to calculate daily, monthly, and yearly energy usage in kilowatt-hours (kWh). Identify which appliances consume the most electricity and discover opportunities to reduce consumption. Ideal for sizing solar panel systems, understanding electricity bills, planning energy efficiency upgrades, and establishing baseline consumption for home energy management and sustainability goals.
Quick Start Templates:
Select a template then customize your appliances
Add your appliances to estimate annual energy consumption
For each appliance, we calculate annual energy consumption based on power, usage hours, and quantity:
For example, three 60W light bulbs running 5 hours/day: (60 × 5 × 3 × 365) / 1000 = 328.5 kWh/year
The calculator includes preset templates for different home sizes:
Each appliance's percentage of total consumption helps identify the biggest energy users:
For example, if your refrigerator uses 500 kWh and total is 10,000 kWh: (500 / 10,000) × 100 = 5%
HVAC systems (heating/cooling) typically account for 40-50% of home energy use because they run many hours and use high wattage. Water heaters (15-20%) and refrigerators (5-10%) also contribute significantly because they run continuously. Small appliances like lights and electronics are often less than 10% combined despite having many units.