Choose your EV and the gas car you'd buy instead — we pull the efficiency, prices, and your local energy rates automatically. Then you get the honest 5-year math.
① YOUR EV
⚡ – mi/kWh real-world💲 –MSRP
Estimated market fair value based on your model — you can change it if you have real numbers. Dragged down −12% from EPA for real-world driving.
② THE GAS CAR INSTEAD
⛽ – MPG real-world💲 –MSRP
Estimated market fair value based on your model — you can change it if you have real numbers. Dragged down −10% from EPA for real-world driving.
③ YOUR ZIP — THAT'S IT
⌛ looking up your state…
🔌 –/kWh ⛽ –/gal
Rates are state averages (EIA residential electricity, AAA gas Sep 2026) — edit if you know your exact numbers.
④ NEW OR USED?
● CALCULATED LIVE
THE VERDICT
THE 5-YEAR WALLET RACE
⚡ EV TOTAL
$0
5 yrs, all-in
⛽ GAS TOTAL
$0
5 yrs, all-in
⚡ EV
⛽ Gas
💰
$0
saved every month
📆
–
until the EV pays for itself
⛽
0
gas station trips you'll never take
🌍
0
tons of CO₂ dodged
🔌
0
kWh you'll sip per year
🛣️
0
miles over 5 years
🔋 BATTERY HEALTH-O-METER
–
Where the numbers come from: EV efficiency = EPA combined MPGe ÷ 33.7, then −12% for real-world driving; gas = EPA combined MPG −10%. Purchase price = MSRP for the current model year, otherwise an estimated market fair value using a standard depreciation curve (EVs lose value faster than gas cars) — always editable. Electricity = EIA state residential averages (2025–26); gas = AAA state averages (late Sep 2026) — both editable above. Maintenance estimated at $0.061/mi EV vs $0.101/mi gas. Battery health ≈ 100% − 1.8%/yr (fleet average). Battery replacement: pack assumed to last 12 yrs / 180k miles to ~70% health; cost ≈ $180/kWh installed today, falling ~7%/yr — added to the EV total only if it lands inside your 5 years. These are estimates, not promises — your utility bill gets the final vote.
Taking this to a dealer? 📄
The full $29 report adds battery deep-dive, home-charger setup cost & resale projection as a take-it-to-the-lot PDF.