Electricity Bill Calculator

Calculate your monthly electricity bill by adding appliances and their usage. Find your biggest energy consumers.
$/kWh

Appliances

Refrigerator
W
hrs
Air Conditioner
W
hrs
Lights
W
hrs

Estimated Monthly Bill

$75.60

$2.52/day

Monthly kWh

540.0

Daily Cost

$2.52

Monthly Cost

$75.60

Cost by Appliance

Air Conditioner360.0 kWh - $50.40
Refrigerator108.0 kWh - $15.12
Lights (x5)72.0 kWh - $10.08
Total540.0 kWh - $75.60

Top Energy Users

1. Air Conditioner67% of total
2. Refrigerator20% of total
3. Lights13% of total

Use the Electricity Bill Calculator above to calculate your results. Enter your values and see instant results — all calculations run in your browser.

Disclaimer: This calculator is for informational purposes only and does not constitute tax, financial, or legal advice. Results are estimates based on the information you provide and current rates. Always consult a qualified tax professional or financial advisor for advice specific to your situation.

How It Works

This Electricity Bill Calculator helps you estimate your monthly electricity costs by breaking down consumption by individual appliances. Understanding which devices use the most power empowers you to make informed decisions about energy conservation and reduce your utility bills. Given projected energy price increases, optimizing usage in 2026 is more crucial than ever.

The calculator sums the energy consumption (in kWh) for each appliance, calculated as (Appliance Wattage / 1000) * Hours Used Per Day * Days Used Per Month. This total kWh is then multiplied by your local electricity rate per kWh (e.g., an estimated average of $0.18 per kWh in the US for 2026, though rates vary significantly by region).

Always ensure you are using the correct wattage for your specific appliance; checking the appliance label is best. A common mistake is underestimating daily usage hours, especially for devices left on standby. Remember to factor in phantom load – the power drawn by electronics even when 'off' or in standby mode.

Example: Calculating a Refrigerator's Monthly Cost

  1. 1 Input: Let's calculate the cost for a refrigerator. Assume it has a wattage of 150W, runs 24 hours a day, and 30 days a month. We'll use an electricity rate of $0.18/kWh.
  2. 2 Calculation: (150W / 1000) * 24 hours/day * 30 days/month = 108 kWh/month. Then, 108 kWh/month * $0.18/kWh = $19.44 per month.
  3. 3 Result: This refrigerator will add approximately $19.44 to your monthly electricity bill.
  4. 4 Context: You can repeat this process for all your major appliances like air conditioners, water heaters, and washing machines to get a comprehensive understanding of your household's energy consumption and identify areas for potential savings.

Source: DOE · Last updated: April 2026

Frequently Asked Questions

What uses the most electricity in a home?
Heating and cooling account for about 40-50% of home electricity use. Other major consumers are water heating (14%), appliances like washer/dryer and refrigerator (13%), lighting (9%), and electronics (5-10%).
How do I read my electricity bill?
Key terms: kWh (kilowatt-hours) measures energy used, the rate (cents per kWh) is the unit price, and usage charges equal kWh times the rate. Most bills also include delivery charges, taxes, and fees. The US average is about 16 cents per kWh.
How can I lower my electricity bill?
The biggest savings come from adjusting your thermostat (each degree saves 1-3%), sealing air leaks, upgrading to LED lights, using Energy Star appliances, and running heavy-use appliances during off-peak hours if your utility offers time-of-use rates.

You might also need

Solar Panel Savings Calculator

Estimate solar panel system cost, payback period, and 25-year savings with federal tax credit and state incentives.

Carbon Footprint Calculator

Estimate your annual carbon footprint from driving, electricity, flights, and diet. Compare to the US average.

Generator Size Calculator

Calculate generator wattage needed based on appliances. Accounts for starting watts on motor loads.