Appliance Electricity Cost Calculator
Calculate how much it costs to run a specific appliance.
Enter wattage, hours used, and electricity rate to see daily and monthly costs.
Appliance electricity cost is calculated from the appliance’s power draw (in watts), how long it runs, and your local electricity rate (in cents per kilowatt-hour).
Cost Formula:
Cost = (Watts / 1,000) × Hours × Rate ($/kWh)
This gives the cost for one period of operation. Multiply by days per month for a monthly figure.
Worked example: 60-inch LED TV: 150 watts Usage: 5 hours/day, 30 days/month Electricity rate: $0.15/kWh
Daily cost = (150 / 1,000) × 5 × $0.15 = $0.1125/day Monthly cost = $0.1125 × 30 = $3.38/month Annual cost = $3.38 × 12 = $40.50/year
Typical appliance power consumption:
| Appliance | Typical Watts |
|---|---|
| Refrigerator | 100–400 W |
| Electric oven | 2,000–5,000 W |
| Microwave | 600–1,200 W |
| Dishwasher | 1,200–1,500 W |
| Clothes dryer | 4,000–5,500 W |
| Washing machine | 500–1,000 W |
| Central AC (per ton) | 1,000–1,500 W |
| Desktop computer | 60–250 W |
| 65-inch LED TV | 100–200 W |
| LED bulb (60W equiv) | 8–10 W |
| Phone charger | 5–20 W |
Average US electricity rate: $0.12–0.18/kWh — use your actual rate from your utility bill for precision.
Standby power (vampire load): Many appliances draw 1–5 watts even when “off.” A TV set-top box, gaming console, and router together can cost $50–$100/year just in standby power. Use smart power strips or disconnect when not in use.