Estimate your monthly and annual electricity costs by adding appliances, setting usage hours, and entering your local energy rate. Free, instant, and completely private — all calculations happen in your browser.
This free electricity cost calculator helps you estimate your monthly and annual energy bills. Add your appliances, set their wattage and daily usage hours, and enter your local electricity rate per kWh. The tool instantly calculates daily, monthly, and annual costs, plus a detailed breakdown per appliance. All calculations happen 100% in your browser — no data is sent to any server.
It provides a good estimate based on average appliance wattage and your usage patterns. Actual costs may vary due to rate changes, appliance efficiency, and standby power consumption.
Check your latest electricity bill — the rate is usually shown as "$/kWh" or "€/kWh". You can also use our preset values as a rough estimate.
No, this calculator estimates the pure energy cost. Your actual bill may include fixed fees, taxes, and surcharges on top of the per-kWh rate.
The calculator does not store data (for privacy). You can bookmark the page with your inputs if needed, or write down your appliance list.