Check how much money specific appliances cost to run daily/monthly.
Calculator Parameters
Enter details and click calculate to view the results instantly.
Calculation Examples
Scenario Inputs
Output Result
wattage : 1500, hours : 4, rate : 0.16
Monthly Cost: $28.80
About Appliance Energy Cost Calculator
Appliance Energy Cost Estimator. Check how much money specific appliances cost to run daily/monthly. Starlightopia provides this tool completely free and online, optimized for instant, accurate computations.
How It's Calculated
How do you calculate an appliance's monthly energy cost?
Monthly Cost = (Wattage x Daily Hours x 30 days / 1,000) x Electricity Rate per kWh.
Technical Specifications
CategoryUnit & Everyday
Target ValueMonthly Running Cost
Inputs Required (3)
Appliance Wattage (W) (number)
Daily Active Hours (number)
Utility Cost ($ per kWh) (number)
Frequently Asked Questions
How do you calculate an appliance's monthly energy cost?
Monthly Cost = (Wattage x Daily Hours x 30 days / 1,000) x Electricity Rate per kWh.
What is the difference between running wattage and starting wattage?
Running wattage is the steady power an appliance uses while operating, while starting wattage is the brief surge needed to turn on motorized components.
How much electricity does a standard space heater use?
Most standard household space heaters pull about 1,500 watts of power on their high setting.
What is an Energy Star rating?
An Energy Star rating is a government-backed certification marking appliances that meet strict energy efficiency standards.
What does phantom energy drain mean?
Phantom drain is the power appliances use while plugged in on standby mode, even when turned off.