Electricity cost per kWh USA is not one fixed national tariff, but the latest U.S. Energy Information Administration data gives a useful residential benchmark. For July 2026, the U.S. residential average price was 18.31 cents per kilowatt-hour (¢/kWh). At that benchmark, 1 kWh costs about $0.183, 10 kWh costs $1.83, and 1,000 kWh of variable electricity use corresponds to about $183.10 before considering how a specific utility structures fixed charges, taxes, credits or time-of-use rates.
The July figure is a nationwide average, not a quote for a household. EIA’s July 2026 state residential price table shows substantial variation by state, and your own utility bill can differ again because rate plans and bill components are local. For a household estimate, use the HomeBillLab U.S. Electricity Bill Calculator with the actual kWh and rates shown on your bill.
Table of Contents
How much does 1 kWh cost in the USA?
Using EIA’s July 2026 residential average of 18.31¢/kWh, the arithmetic is simple: multiply the number of kilowatt-hours by $0.1831. The table below isolates the variable energy amount so you can see what the national benchmark means in dollars.
| Electricity used | At 18.31¢/kWh | What this represents |
|---|---|---|
| 1 kWh | $0.18 | One kilowatt used for one hour |
| 10 kWh | $1.83 | A small block of household use |
| 30 kWh | $5.49 | Thirty units of 1 kWh |
| 300 kWh | $54.93 | Variable energy amount only |
| 1,000 kWh | $183.10 | Variable energy amount only |
EIA’s Electric Power Monthly national price series reports the 2025 annual residential average at 17.30¢/kWh and the July 2026 monthly residential average at 18.31¢/kWh. Monthly data can move with season, fuel costs, demand and other factors, so a current monthly benchmark should not be treated as a permanent annual rate.
What exactly is a kilowatt-hour?
A kilowatt-hour is a unit of energy, not a unit of instantaneous power. EIA’s guide to measuring electricity explains that watts and kilowatts describe power, while watt-hours and kilowatt-hours describe electricity used over time. One kilowatt is 1,000 watts, and one kWh is one kilowatt used for one hour.
- A 1,000 W device running for 1 hour uses 1 kWh.
- A 500 W device running for 2 hours also uses 1 kWh.
- A 2,000 W device running for 30 minutes uses 1 kWh.
- A 100 W load running for 10 hours uses 1 kWh.
This distinction matters when comparing appliances. A device with a high wattage can use little energy if it runs briefly, while a lower-wattage device can use more energy if it operates for many hours. The bill is based on accumulated energy use and the rate structure that applies to that use.
Residential electricity prices vary sharply by state
The national average is useful for context, but it hides large regional differences. EIA’s July 2026 residential state table is preliminary and shows averages for residential customers in each state. Among the states, Louisiana was 12.72¢/kWh while Hawaii was 48.00¢/kWh. California was 33.61¢/kWh, New York 29.90¢/kWh, Texas 15.88¢/kWh and Florida 15.03¢/kWh.
| Selected state | July 2026 residential average | 1 kWh at that average |
|---|---|---|
| Louisiana | 12.72¢/kWh | $0.127 |
| Utah | 13.12¢/kWh | $0.131 |
| Florida | 15.03¢/kWh | $0.150 |
| Texas | 15.88¢/kWh | $0.159 |
| Colorado | 17.00¢/kWh | $0.170 |
| U.S. total | 18.31¢/kWh | $0.183 |
| Pennsylvania | 21.72¢/kWh | $0.217 |
| New York | 29.90¢/kWh | $0.299 |
| California | 33.61¢/kWh | $0.336 |
| Hawaii | 48.00¢/kWh | $0.480 |
These figures are statewide averages, not the rate every resident pays. A customer can be above or below the state average depending on utility territory, supplier, usage level, season, tariff design and other bill rules. The state selector in the HomeBillLab calculator is therefore labeled as a benchmark rather than a utility quote.
Why your actual electricity cost per kWh can be different
EIA’s electricity price explainer identifies several reasons prices differ across locations and time, including fuel costs, power-plant costs, transmission and distribution systems, weather, demand and state regulation. Those system-level differences are one reason an average for the United States cannot substitute for the rate on your own bill.
Your bill can also combine charges in ways that make a simple advertised cents-per-kWh number incomplete. Depending on the utility or supplier, you may see a supply or energy rate, a separate delivery or volumetric rate, a fixed customer charge, riders, taxes, credits or other adjustments. Some plans use different prices at different times of day.
- Single or blended rate: one cents-per-kWh figure is applied to the kWh used, either because the bill uses one variable rate or because you intentionally combine variable components.
- Separate supply and delivery: two variable cents-per-kWh components may need to be added when estimating the variable portion of the bill.
- Time of use: peak, shoulder or off-peak usage can be billed at different rates, so total kWh alone does not tell you the final variable cost.
- Fixed customer charge: a monthly or billing-period amount can raise the effective cost per kWh when usage is low, even though the charge itself is not a per-kWh rate.
How to calculate your effective cost per kWh from a bill
If you want a quick household-specific figure, divide the dollar amount you choose to analyze by the kWh used during the same billing period. The important part is defining the numerator clearly.
For example, suppose a bill shows 850 kWh of use and $187 in total charges after credits. Dividing $187 by 850 kWh gives about $0.22/kWh, or 22¢/kWh. That is an effective all-in bill rate for that period, not necessarily the utility’s advertised energy rate. If the bill includes a large fixed charge, taxes or one-time adjustments, those items are reflected in the 22¢ result.
If your goal is instead to estimate what an additional appliance costs to run, use the variable electricity rate that actually changes when another kWh is consumed rather than automatically allocating the entire fixed customer charge to that appliance. HomeBillLab keeps those components visible so the calculation method matches the question being asked.
Variable rate versus all-in effective rate
Two households can use the same number of kilowatt-hours and still end up with different effective costs because the bill is not always just usage multiplied by one rate. When comparing the electricity cost per kWh USA benchmark with your own bill, decide whether you are comparing a variable energy rate or an all-in effective rate. They answer different questions.
The variable rate is useful when you want to know what an extra kWh is likely to add to the bill, provided the tariff does not have tiers or other rules that change the marginal price. An all-in effective rate is useful when you want to understand the total bill for a specific period. It spreads fixed charges and adjustments across the kWh consumed, so it can rise when usage falls even if the utility’s variable rate has not changed.
For example, imagine two monthly bills with the same 15¢/kWh variable rate and a $20 fixed customer charge. At 1,000 kWh, the simplified total before other items is $170, or an effective 17¢/kWh. At 400 kWh, the simplified total is $80, or an effective 20¢/kWh. The utility’s variable rate stayed at 15¢, but the fixed charge is spread over fewer units of electricity in the lower-usage month.
This is why it is useful to label calculations precisely. A state average, an advertised supply rate, a combined supply-and-delivery rate and an all-in bill rate can all be expressed in cents per kWh, but they are not necessarily measuring the same thing.
How to use the HomeBillLab U.S. electricity calculator
Open the U.S. Electricity Bill Calculator and start with the numbers on your own utility bill whenever possible. Choose the single/blended-rate mode when one variable rate represents the kWh charge you want to model. Choose time of use when your bill separates usage by pricing period.
The calculator also lets you enter a separate delivery or other volumetric rate, a fixed customer or service charge, other charges or credits, and the billing period. Its state benchmark is context only. If the state average and the rate on your bill disagree, the rate that actually applies to your account is the better input for estimating your household.
For more U.S. pricing guides and future state or tariff explainers, use the HomeBillLab U.S. Electricity Costs hub. For how HomeBillLab handles formulas, benchmarks, source freshness and calculator limitations, see the HomeBillLab methodology.
Electricity cost per kWh USA: practical takeaways
- The latest EIA national residential benchmark available on 28 September 2026 is 18.31¢/kWh for July 2026.
- At that benchmark, 1 kWh costs about 18 cents and 1,000 kWh corresponds to about $183.10 in variable energy cost.
- State averages vary widely, so a U.S. national figure is context, not a household quote.
- Your utility bill may include delivery charges, fixed customer charges, taxes, credits or time-of-use pricing that change the final amount.
- Use your own bill’s kWh and applicable rates for a household-specific estimate.
FAQs
Is 18.31¢/kWh the electricity rate for every U.S. home?
No. It is EIA’s U.S. residential average for July 2026. Actual household rates vary by state, utility, supplier and rate plan, and bills can include charges that are not expressed as a simple cents-per-kWh number.
How much is 1 kWh in dollars?
At 18.31¢/kWh, one kWh is $0.1831. At 25¢/kWh, one kWh is $0.25. Convert cents to dollars by dividing by 100.
Is kW the same as kWh?
No. kW is power, while kWh is energy used over time. A 2 kW load running for half an hour uses 1 kWh.
Should I use the state benchmark or my utility rate?
Use your own utility rate when you have it. State and national averages are useful for context and comparison, but they are not account-specific tariffs.
Official U.S. sources
- EIA — Average residential electricity prices by state, July 2026
- EIA — U.S. average electricity prices by end-use sector
- EIA — Prices and factors affecting electricity prices
- EIA — Measuring electricity
Reviewed: 28 September 2026. The price benchmarks in this guide should be checked after each new EIA Electric Power Monthly release; the next scheduled release shown by EIA is 23 October 2026.