電気代計算機
消費電力・使用時間・電気料金単価から家電の日次・月次・年間コストを計算
Appliance Details
使用例
Typical Appliance Wattages
Electricity Cost
Energy Usage
Yearly Cost of Common Appliances (at your rate)
| Appliance Details | Power (W) | Hours / day | Cost per Year |
|---|
計算方法
Cost Breakdown
もし…だったら？
各行は現在の入力値で再計算されます。行をタップすると適用されます。
2つのプランを比較
Enter appliance details to see its running cost
Fill in wattage, daily hours and your electricity rate above
Electricity Cost Calculator FAQ
How do I find an appliance's wattage?
Check the label on the back or bottom of the device, its power adapter, or the manual. If only amps and volts are listed: Watts = Amps × Volts. Our reference table lists typical values for common appliances.
Where do I find my electricity rate?
On your utility bill — look for the price per kWh (energy charge). The US average is around $0.15–0.20 per kWh; rates vary widely by state and plan.
Why is my real bill different?
Appliances with thermostats (fridges, ACs, heaters) cycle on and off, so actual running hours are lower than wall-clock hours. Use the compressor's duty cycle — e.g. a fridge running 8 effective hours out of 24. Fixed customer charges and taxes on your bill are also outside this calculation.