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Electricity Cost Calculator
What does that space heater / AC / gaming PC actually cost you per month? Enter the wattage and your rate — done.
Enter wattage and hours.
Common appliance wattages
| Appliance | Typical watts |
|---|---|
| LED bulb | 10 |
| Laptop | 50 |
| TV (LED 50") | 100 |
| Refrigerator | 150 (avg, runs ~⅓ time) |
| Window AC | 900 |
| Microwave | 1000 |
| Space heater | 1500 |
| Hair dryer | 1800 |
| Electric clothes dryer | 3000 |
FAQ
Where do I find my rate? +
Your electric bill lists $/kWh. It usually includes generation, transmission, and distribution charges. Time-of-use plans have different rates by hour.
Why do refrigerators say 150W but cost less than that implies? +
Because they cycle — they're only running ~⅓ of the time. The 'nameplate' wattage is peak, not average.