⚡ Electricity Cost Calculator

Updated: 2026-07-11

Enter appliance power (watts), daily usage (hours), and electricity rate to calculate costs.

Daily Cost
Monthly Cost
Yearly Cost

How to Use the Electricity Cost Calculator

Using the Electricity Cost Calculator is straightforward:

  1. Enter Your Values
    Input the required numbers and parameters into the calculator fields. Each field is clearly labeled — simply type your values or use the spinner controls to adjust them.
  2. Configure Options
    Select any additional options such as computation mode, currency, time period, or precision level. The calculator updates automatically as you change values.
  3. View the Results
    The calculated result is displayed instantly with clear formatting. You can Copy the result to your clipboard or adjust input values to see how different scenarios affect the outcome.

FAQ

How to calculate electricity cost?

Formula: Cost = Power(kW) × Time(hours) × Rate($/kWh). Example: 1000W AC running 8 hours/day at $0.12/kWh = 1kW × 8h × $0.12 = $0.96/day. Calculate daily, monthly, or yearly costs easily.

How to estimate appliance power consumption?

Check the rated power (watts) on appliance labels. Typical ranges: AC 1000-3000W, Refrigerator 100-200W, Washing Machine 300-500W, Water Heater 1500-3000W, TV 100-300W. This tool calculates total consumption and cost by day/month/year.

How to save on electricity bills?

Tips: 1) Use energy-efficient appliances; 2) Turn off lights and unplug standby devices; 3) Set AC to energy-saving temperatures (72°F+/26°C+); 4) Use time-of-use rates (cheaper at night); 5) Clean AC filters and defrost fridge regularly.

Is this electricity calculator accurate?

This tool uses standard formulas for reliable estimates. Actual bills may vary due to tiered pricing, time-of-use rates, and local surcharges. Check your local utility company's rate schedule for exact figures.