Electricity Cost Calculator
Find out exactly how much any appliance costs to run. Enter wattage, daily usage, and your electricity rate for instant results.
Appliance Electricity Cost
Common Appliances Cost Comparison
Annual cost at $0.16/kWh with typical usage:
How to Calculate Electricity Costs
The formula is simple: Cost = (Watts ÷ 1000) × Hours × Rate per kWh. This gives you the daily cost. Multiply by 30 for monthly, 365 for annual. This free electricity cost calculator automates all that math and lets you compare appliances instantly.
Understanding Your Electricity Bill
Your electricity bill charges you in kilowatt-hours (kWh). One kWh is the energy used by a 1,000-watt appliance running for one hour — or a 100-watt appliance running for 10 hours. The US average electricity rate in 2026 is approximately $0.16/kWh, though rates vary from ~$0.10 in Louisiana to ~$0.35 in Hawaii and California.
Biggest Energy Consumers at Home
Heating and cooling accounts for 45–50% of the average home's energy bill. Water heating adds another 15–18%. Appliances and electronics add 15%. Lighting adds 10%. Targeting HVAC efficiency gives the biggest bang for your money — smart thermostats alone can save 10–15% on heating and cooling bills.