What does it actually cost to run?

Simple, accurate home energy cost calculators. No sign-up, no ads in your face, nothing leaves your browser. Electricity rates come from the latest U.S. EIA state averages and are refreshed monthly.

• Electricity Cost Calculator

  How much any appliance costs to run per day, month, and year — from a 10 W LED bulb to a 3,000 W dryer. Pick your state or enter your exact rate.

• EV Charging Cost Calculator

  Cost per full charge, per mile, and per month of charging an electric car at home — with a side-by-side comparison against a gas car.

• Standby Power Cost Calculator

  Add up what your always-plugged-in devices — TVs, consoles, cable boxes, chargers — quietly cost you every year.

• Air Conditioner Running Cost Calculator

  Estimate cooling costs from your unit's BTU rating and SEER2 efficiency, per day and per season.

Guides

• Why Is My Electric Bill So High?

  A step-by-step diagnostic: was it the rate or the usage, which appliance is the culprit, and what to fix first — with real numbers for each suspect.

Why these numbers can be trusted

Every calculator shows its formula, states its assumptions, and uses the U.S. Energy Information Administration's average residential electricity price for your state (currently the April 2026 dataset). If you know your exact rate from your utility bill, enter it — it always overrides the state average.