Free calculator

Electricity Cost Calculator

Estimate appliance electricity usage and running cost.

Calculator inputs

Electricity running cost

Ready to calculate

Appliance power

Use the rated wattage from the appliance label, manual or product specification. For variable-speed equipment, actual use can differ.

Usage pattern

Tell PlanCalq roughly how long and how often the appliance runs.

Electricity rate

Enter the all-in price you pay per kilowatt-hour (kWh) if available from your utility bill.

Estimate only. Actual consumption can vary with thermostat settings, duty cycle, standby draw and appliance efficiency.
Your estimate

Ready when you are

Enter the appliance power, usage and electricity rate to estimate energy use and running cost.

Plan with confidence

How to use the Electricity Cost Calculator

Estimate how much an appliance costs to run per day, month or year using its power rating, usage time and your electricity rate.

Step by step

What to enter

  1. Enter the appliance power in watts or kilowatts.
  2. Enter how many hours per day and days per week you expect to use it.
  3. Enter your electricity price per kWh and choose a currency.
  4. Review estimated energy use and daily, monthly and annual running cost.
Method

How the calculation works

Electrical energy is calculated by converting the appliance power to kilowatts and multiplying it by operating time.

PlanCalq converts the usage schedule into average daily, monthly and annual kWh, then multiplies those values by the electricity rate you entered.

Calculation summaryPower (kW) × operating hours = energy use (kWh)Energy use × electricity rate = running costWeekly usage is converted into average monthly and annual totals
Common questions

Electricity Cost Calculator FAQs

What is a kWh?

A kilowatt-hour is a unit of energy. Using a 1 kW appliance for one hour consumes 1 kWh.

Should I use rated watts or measured watts?

Measured average power is usually more realistic for appliances that cycle or change output. Rated wattage is still useful for a quick upper-level estimate.

Why is this not added to My Project material cost?

Electricity is a recurring operating cost, while My Project currently totals one-time material and purchase estimates. Keeping them separate avoids mixing different cost types.