About PlugCosts

PlugCosts answers one practical question: what does it actually cost to run the things in your home? Every calculator multiplies the wattage and runtime you enter by a real, current electricity price — no vague "up to" claims.

Where prices come from

State electricity prices come from the U.S. Energy Information Administration's Electric Power Monthly, Table 5.6.A (average residential price by state). Current data: May 2026, fetched 2026-07-30. We refresh automatically each month when EIA publishes. Note that EIA figures are statewide averages — revenue divided by kilowatt-hours sold, including delivery charges and taxes. They are the best available benchmark, but they are not your utility's exact tariff; every calculator also accepts the exact rate from your bill.

About the presets

Wattage and runtime presets are typical engineering values for common household equipment, chosen to be a realistic starting point — not a measurement of your specific unit. Your appliance's label, manual, or a $20 plug-in power meter gives exact numbers, and every calculator lets you enter them.

Limitations

State averages hide utility-level and seasonal differences, tiered pricing, and fixed fees. Estimates here are for comparison and budgeting, not billing-grade accuracy.

Contact

Questions or corrections: hello@plugcosts.com.