Energy Consumption Calculator
Track and reduce your energy usage
Add Your Appliances
The average US rate is $0.15 per kWh
Understanding Home Energy Consumption
Our energy consumption calculator helps you estimate how much electricity your household uses, measured in kilowatt‑hours (kWh). By entering each appliance’s wattage and usage patterns you can visualize real‑world electricity costs and discover opportunities to lower your energy bill.
In 2025 the average U.S. home consumes roughly 29 kWh per day (10,649 kWh per year). If your usage is higher, consider upgrading to ENERGY STAR® appliances, switching to LED lighting, sealing air leaks, and scheduling heavy‑load devices like water heaters or EV chargers during off‑peak hours when utility rates are cheaper.
Energy Calculator FAQ
How do I calculate appliance energy usage?
Multiply the device’s power rating (watts) by the hours used per day, then divide by 1,000 to convert to kWh. Our calculator automates these steps and aggregates every appliance for a full‑home snapshot.
What is a kilowatt‑hour (kWh)?
A kilowatt‑hour equals one kilowatt (1,000 watts) of power used continuously for one hour. Utilities bill consumers in kWh, so lowering kWh usage directly reduces your electricity cost.
Why is my electric bill so high?
High‑consuming appliances such as electric water heaters, HVAC systems, and clothes dryers often account for more than half of household electricity. Identifying and optimizing these loads can deliver immediate savings.
How can I reduce CO₂ emissions at home?
Pairing efficiency upgrades with rooftop solar, community solar shares, or a renewable energy plan can slash both your carbon footprint and utility costs, frequently paying for itself in under eight years.