Electricity Cost Calculator
Understand how much your appliances and devices cost to run. This calculator helps you estimate electricity costs based on wattage and usage time. Great for budgeting, comparing appliance efficiency, or deciding whether to upgrade to energy-efficient models.
How We Calculate This
Daily kWh = (Watts × Hours) / 1000. Monthly kWh = Daily × 30. Cost = kWh × Rate. Appliance comparisons assume average daily usage patterns.
Frequently Asked Questions
How do I find the wattage of my appliance?
Look for a label on the appliance showing watts (W) or amps (A). If only amps are shown, multiply by voltage (typically 120V in US) to get watts. Check the manual or manufacturer website.
What is a kWh?
A kilowatt-hour (kWh) is a unit of energy equal to 1,000 watts used for one hour. Your electricity bill charges based on kWh consumed. A 100W bulb running for 10 hours uses 1 kWh.
What is the average electricity rate?
The US average is about $0.12-0.15 per kWh, but rates vary widely by location. Check your electricity bill for your actual rate. Some areas have tiered rates or time-of-use pricing.
Which appliances use the most electricity?
Heating/cooling systems, water heaters, electric dryers, and refrigerators typically use the most energy. Pool pumps, space heaters, and electric ovens are also high consumers.
Related Calculators
You might also find these calculators helpful: Square Footage Calculator, and Home Affordability Calculator.