How Appliance Energy Cost Worksheets Work
Watts × hours × rate, without pretending to be your utility
Free Calculator Hub Editorial Team
6 min read
How Appliance Energy Cost Worksheets Work
Appliance cost worksheets look simple because they are: convert power and time into kilowatt-hours, then multiply by a rate you trust. The value is transparency, not a guaranteed line item on next month’s statement.
The core identity
kWh per day equals watts divided by 1000, times hours per day. Cost equals kWh times $/kWh. Month and year figures are scaled averages, not weather-normalized forecasts.
Try the generic appliance worksheet
Enter any watts, hours, and rate:
Appliance Energy Cost CalculatorWhen presets help
AC, heater, space heater, refrigerator, washer, and dryer pages keep the same engine with device-specific defaults and FAQs so searchers land on familiar examples without duplicate formulas.
- Edit presets whenever nameplate data is available
- Use average watts for cycling loads
- Separate water-heating energy from washer motor draw
- Compare estimates to a plug meter when accuracy matters