U.S. Energy Information Administration
Electric Power Monthly, Table 5.6.A ↗
Residential electricity prices for all states, D.C., and the U.S. average. Preliminary monthly data; not an individual utility tariff.
Used for: Electricity state benchmarks
Source period: June 2026 · released August 26, 2026
Last checked: September 5, 2026
U.S. Energy Information Administration
Measuring electricity ↗
Explains watts, kilowatts, and kilowatt-hours. Supports the conversion from power and operating time to energy.
Used for: Wattage and energy methodology
Source period: Undated reference
Last checked: September 5, 2026
Federal Trade Commission
How to use the EnergyGuide label ↗
Explains estimated annual usage and why actual operating costs vary. Our tool applies your rate to label kWh.
Used for: Annual-kWh appliance model
Source period: August 2022
Last checked: September 5, 2026
HUD USER
Worst Case Housing Needs — definitions ↗
Housing cost burden considers gross rent including utilities. We use 30% as a comparison benchmark, not a legal limit or eligibility rule.
Used for: Rent affordability context
Source period: Undated definitions
Last checked: September 5, 2026
AAA
Your Driving Costs 2025 fact sheet ↗
Fuel, maintenance, insurance, taxes, depreciation, and financing are distinct ownership costs. The 11.04¢/mile maintenance, repair, and tire reference models new vehicles over five years / 75,000 miles.
Used for: Vehicle categories and optional wear benchmark
Source period: September 16, 2025
Last checked: September 5, 2026
Internal Revenue Service
Standard mileage rates ↗
Tax mileage rates serve specified tax purposes. We do not use the business mileage rate as your literal commute expense.
Used for: Commute limitations
Source period: Live reference table
Last checked: September 5, 2026
Reference data and example inputs
EIA rates are bundled with the site so a network problem does not prevent a calculation. The monthly snapshot records the source period, publication date, retrieval date, and units. All other prefilled amounts are illustrative unless explicitly sourced.
The PDF’s 18.44¢/kWh electricity fixture is preserved as an example. The U.S. EIA benchmark in the state selector is 18.34¢/kWh for June 2026. These are intentionally different.
Reviewed September 5, 2026.