Appliance electricity cost
Total appliance electricity use and cost using power, runtime and duty cycle.
Your inputs
The editable example is illustrative. Enter your own dimensions, operating data, prices, and fees. Results update as you edit.
Calculations run in your browser. Inputs are not saved or sent to analytics.
Your result
Complete the inputs to see your result.
How it works
- Energy per modeled month = W/1000 × h/d × Days in modeled month × Duty fraction (0–1); Cost = Energy per modeled month × Price per kWh
- Worked example: 100 W /1000 × 5 h × 30 = 15 kWh; 15 × 0.20 = 3
- Supported input limits: Entries: 1–30
Assumptions and limitations
Prices, power, utilization and fees are your assumptions. Electricity uses measured watts and duty fraction; fixed or tiered tariffs are outside this model. These estimates do not imply market, tax, wiring or safety recommendations.
Sources
- EIA — watts and watt-hours Sources reviewed: 2026-10-06
