How to Calculate Your Home Electricity Cost
Calculating electricity cost is straightforward when you know an appliance’s power, operating time, and electricity rate. The basic formula is: cost = watts ÷ 1,000 × hours × […]
Understand your energy costs. Spend less with better information.
Practical electricity cost calculators, appliance energy guides, and clear explanations to help you understand what your home energy use really costs.
Use the Electricity Cost CalculatorStart with a real number
See what common appliances can cost to run, then learn what changes the number and how to reduce unnecessary energy use.
Electricity
Understand kWh, electricity rates, and the cost of everyday energy use.
Appliances
Estimate running costs for air conditioners, refrigerators, water heaters, fans, and more.
Home Energy
Practical ways to understand and reduce household energy costs.
Latest guides
How Much Does an Electric Water Heater Cost to Run?
Electric water heaters can be significant contributors to household electricity use because heating water requires substantial energy. The actual cost depends on heater power, how long the heating […]
AC vs Fan: Which Is Cheaper to Run?
Fans usually use much less electrical power than air conditioners, but they do not provide the same kind of cooling. A fan moves air and can improve how […]
How Much Electricity Does a Refrigerator Use Per Month?
Refrigerators run throughout the day, but their compressor does not necessarily operate continuously. Monthly electricity use therefore depends on the refrigerator’s design, efficiency, age, temperature settings, room temperature, […]
How Much Does a Window AC Cost to Run?
A window air conditioner can be inexpensive or surprisingly costly to operate depending on its electrical input, efficiency, runtime, and electricity rate. Start with watts Look for the […]