PUMPWATT
Calculators that count what the sign leaves out — detours, rebates, the card in your wallet, engine wear, insurance, your roof — and give one honest number for your car in your ZIP.
Which of the stations you actually choose between is really cheapest per gallon, and what that's worth a year.
No plug, better mileage. How much does a hybrid actually save over the gas car it replaces?
Would an EV or plug-in hybrid save you money — after charging, insurance, the charger, solar, batteries, and your state's incentives?
How this is calculated: every default and its source is on the methods page. Numbers marked as guesses are regional averages or EPA figures, not your station or your car — overwrite them.
Disclosure: some links on this site are affiliate links; if you sign up through them we may be paid. Rankings and verdicts never change based on that — offers appear below the answer, not inside it. This is a calculator, not financial advice.
Data: fuel and electricity prices from the U.S. Energy Information Administration; vehicle figures from the EPA (fueleconomy.gov); incentives from the DOE Alternative Fuels Data Center; station prices, where shown, are powered by Google. Loyalty and card values are typical figures as of mid-2026 — report a change.