Utility Cost Calculator
Knowing your monthly utility costs helps you budget accurately and spot unusually high bills that may signal a problem such as a running toilet, a faulty HVAC unit, or a gas leak. Electricity is typically the largest residential utility expense in the United States, followed by natural gas (used for heating, hot water, and cooking in many homes), and then water. This calculator takes your actual or estimated monthly usage for each utility and your local rate, then multiplies usage by rate to give you the cost for each service and a total. Electricity is charged per kilowatt-hour (kWh); natural gas per therm; and water per 1,000 gallons. Find your rates on your most recent utility bill or the US Energy Information Administration (EIA) website. Rates default to approximate US national averages as a starting point but you should replace them with your actual rates for an accurate estimate. The calculator also shows estimated annual costs and provides a comparison table of average US utility costs by service type.
Total monthly utilities: -- | Annual: --
Average US residential utility costs (reference)
These figures are approximate national averages from government sources and are provided for comparison only. Your actual costs will vary by location, home size, and usage habits.
| Utility | Avg monthly cost | Avg annual cost | Source |
|---|---|---|---|
| Electricity | $140 to $160 | $1,680 to $1,920 | US EIA (2024) |
| Natural gas | $40 to $80 | $480 to $960 | US EIA (2024) |
| Water and sewer | $70 to $100 | $840 to $1,200 | US EPA / AWWA (2024) |
| Total (all three) | $250 to $340 | $3,000 to $4,080 | Combined estimates |
How to find your actual rates
Your electricity and gas rates are printed on your monthly utility bill, usually expressed as cents per kWh or dollars per therm. Water rates are often tiered (a lower rate for the first block of usage, a higher rate for usage above a threshold). Check your local water authority's website for current rates. The US Energy Information Administration publishes state-level average electricity and gas prices at eia.gov.
Utility costs: frequently asked questions
What is the average electric bill in the US?
According to the US Energy Information Administration (EIA), the average US residential electricity consumption is approximately 886 kWh per month and the average retail price is around 16 cents per kWh, putting the average monthly electricity bill at roughly $140 to $160. Bills vary widely by state: Hawaii averages over $180 per month while states like Louisiana and Idaho average under $110. The EIA publishes updated average retail electricity prices monthly at eia.gov.
How much does natural gas cost per therm?
The US Energy Information Administration (EIA) reports average US residential natural gas prices in the range of $1.10 to $1.40 per therm (100,000 BTU), though prices vary significantly by season and region. The Northeast and parts of the South typically pay more than the Midwest. One therm equals approximately 100 cubic feet (CCF) of natural gas, though the exact conversion depends on the energy content of local gas supply. Check your utility bill or the EIA website for your regional rate.
What is the average water bill in the US?
The US Environmental Protection Agency (EPA) estimates average household water use at about 300 gallons per day (around 9,000 gallons per month). Water rates vary enormously by municipality. The American Water Works Association (AWWA) reports average US water rates of approximately $4 to $6 per 1,000 gallons for residential customers, putting the average monthly water bill at $40 to $70 before sewer charges. Sewer fees often equal or exceed the water charge.
How can I reduce my utility bills?
The US Department of Energy (Energy.gov) recommends several steps: set your thermostat to 68 degrees Fahrenheit in winter and 78 in summer; seal air leaks around windows, doors, and attic hatches; upgrade to ENERGY STAR appliances; use LED lighting throughout; install a programmable or smart thermostat; and fix dripping faucets promptly (a dripping faucet can waste 20 gallons per day). The DOE also offers weatherisation assistance for income-qualifying households.
How do I read my utility meter?
Electric meters show cumulative kilowatt-hour (kWh) consumption since installation. Your bill charges you for the difference between two consecutive readings. Natural gas meters measure in cubic feet (CCF or MCF). Water meters measure in gallons or cubic feet. Smart meters transmit readings automatically; older dial-type meters must be read manually. Contact your utility if you believe your reading is incorrect: you can submit a self-read through most utility online portals.
References
- US Energy Information Administration (EIA): Average Retail Price of Electricity and Natural Gas (eia.gov)
- US Environmental Protection Agency (EPA): WaterSense program, average household water use data
- American Water Works Association (AWWA): Residential Water Rate Survey
- US Department of Energy (Energy.gov): Home Energy Saver tips
Reviewed by the CalculatorHub team, edited by James Graham, 14 June 2026. Rates shown are approximate national averages and may differ from your actual utility charges. See our methodology.