$108.00
$118.00
$0.00
$118.00
0.131
$/kWh
$3.93
$108.00
$118.00
$0.00
$118.00
0.131
$/kWh
$3.93
The Electricity Bill Calculator estimates your monthly electric bill based on your kilowatt-hour (kWh) consumption, your utility's rate per kWh, and any fixed monthly service charges. Electricity bills have two primary components: an energy charge (which scales with usage) and a fixed customer charge that applies regardless of how much power you use. Understanding both helps you identify savings opportunities and budget accurately for housing costs.
The average U.S. household uses approximately 900 kWh per month according to the U.S. Energy Information Administration (EIA), though this varies widely by region, home size, climate, and appliances. Residential electricity rates average around $0.12 per kWh nationally, but range from under $0.10 in energy-rich states like Washington and Louisiana to over $0.25 in Hawaii and California. Entering your actual usage from your utility bill and your local rate gives you an accurate monthly cost estimate.
Use this calculator to model the financial impact of energy-saving measures. If you install LED lighting, add a smart thermostat, or upgrade to Energy Star appliances and reduce your monthly usage from 900 kWh to 750 kWh, the calculator instantly shows you the dollar savings. Over a year, even a 100 kWh monthly reduction at $0.12/kWh saves $144 annually — often more than enough to justify the cost of the efficiency upgrade.
The energy charge is a simple product of usage and rate:
$$C_{energy} = U_{kWh} \times r_{kWh}$$
The total monthly bill adds the fixed charge:
$$C_{total} = C_{energy} + C_{fixed}$$
The average daily cost assumes a 30-day month:
$$C_{daily} = \frac{C_{total}}{30}$$
Real utility bills may include additional tiers, taxes, transmission charges, and renewable energy surcharges. This model captures the two largest components (energy charge and service charge) which typically account for 80–90% of the total bill. For a fully precise estimate, add any listed surcharges and taxes from your actual bill.
A total monthly bill below $100 is relatively low for a U.S. household; $100–$200 is average; above $200 suggests high usage, high rates, or both. The daily cost figure is useful for daily budgeting — if your daily electricity cost is $4, that is similar to a morning coffee purchase in terms of daily expense magnitude. If your bill seems high, check whether your kWh usage is above the national average (900 kWh) and identify high-consumption appliances such as electric water heaters, clothes dryers, and HVAC systems.
Inputs
Results
900 kWh at $0.12 plus $10 fixed charge equals a $118 monthly bill — about $3.93/day.
Inputs
Results
High summer AC usage (1,500 kWh) at $0.14/kWh produces a $222 monthly bill.
Your monthly usage in kWh is printed on your electric utility bill. It may also be visible on a smart meter app or your utility's online account portal. Your bill shows current month usage and often compares it to the same month last year.
As of 2024, the U.S. residential average is approximately $0.16 per kWh according to the EIA, though it ranges from $0.10 (Louisiana) to $0.29 (Hawaii). Check your bill or visit your state utility commission's website for your local rate.
The fixed customer charge (also called a service charge or basic service fee) covers meter reading, billing, and grid maintenance costs regardless of usage. It typically ranges from $5 to $25 per month. Locate it as a line item on your utility bill separate from the energy charge.
Key strategies include: switching to LED lighting (75% less energy), installing a programmable thermostat, upgrading to Energy Star appliances, running dishwashers and washing machines during off-peak hours, and sealing air leaks. Each 100 kWh reduction saves $12–$16/month at average rates.
In a typical home: HVAC (heating/cooling) accounts for ~47% of usage, water heaters ~18%, washer/dryer ~5%, refrigerator ~4%, and lighting ~9%. Targeting HVAC efficiency offers the greatest savings potential.
No — this calculator models the two primary charges. Actual bills may include distribution charges, fuel adjustment charges, renewable energy surcharges, state/local taxes (5–10%), and demand charges. These can add 15–25% to the base energy charge in some jurisdictions.
Roboculator Team
The Roboculator Team explains calculations, planning tools, and practical formulas in clear language for real-life situations.
How helpful was this calculator?
Be the first to rate!
