EV Cost per Mile Calculator (vs Gas)
Electricity price × EV efficiency vs pump price × MPG: the honest per-mile duel, annual savings, and the break-even electricity price.
The entire EV-economics argument hides in one input: WHERE you charge. Home overnight rates make EVs 3–4× cheaper per mile; DC fast charging at 45–60¢/kWh can erase the advantage entirely. Efficiency also drops 20–30% in deep winter.
Formula
⚠️ Estimates for planning and education — verify against manufacturer data and measured results. Performance figures are not a substitute for safe, legal driving.
Disclaimer: This tool is for general informational and estimation purposes only and is not professional financial, tax, accounting or legal advice. All figures are estimates — verify with a qualified professional before making decisions. Read the full disclaimer.
Electricity price × EV efficiency vs pump price × MPG: the honest per-mile duel, annual savings, and the break-even electricity price.
About EV Cost per Mile Calculator (vs Gas)
Every EV-versus-gas argument eventually arrives at the same two divisions: cents-per-kilowatt-hour over miles-per-kilowatt-hour, against dollars-per-gallon over miles-per-gallon. This calculator runs the duel honestly — your electricity rate, your EV's real efficiency, your comparison car's real MPG — and reports per-mile costs, annual savings at your mileage, and the break-even electricity price above which the gas car actually wins (a number every road-tripper quietly meets at DC fast chargers).
How to use EV Cost per Mile Calculator (vs Gas)
- 1Enter — sensible defaults are pre-filled so you see a worked result immediately.
- 2Read the live results: .
- 3Check the "With your numbers" line to see the formula EV ¢/mi = price per kWh ÷ mi/kWh; gas ¢/mi = price per gallon ÷ MPG; break-even = gas¢/mi × mi/kWh substituted step by step.
- 4Adjust inputs (or flip the unit toggle) until the scenario matches yours, then copy or share the result.
Why use EV Cost per Mile Calculator (vs Gas)?
- ✓Instant, free and private — every calculation runs in your browser, nothing is uploaded
- ✓Built on the published formula EV ¢/mi = price per kWh ÷ mi/kWh; gas ¢/mi = price per gallon ÷ MPG; break-even = gas¢/mi × mi/kWh with sources cited on the page
- ✓The entire EV-economics argument hides in one input: WHERE you charge. Home overnight rates make EVs 3–4× cheaper per mile; DC fast charging at 45–60¢/kWh can erase the advantage entirely. Efficiency also drops 20–30% in deep winter.
- ✓Switch units, tweak any input and watch every result update live
Frequently asked questions
What efficiency should I assume for an EV I'm considering?+
EPA combined ratings translate to: efficient sedans 3.8–4.5 mi/kWh, crossovers 3.0–3.6, large SUVs and trucks 2.0–2.8. Real-world matches EPA closely in mild weather, drops 20–30% in freezing temperatures (cabin heat is the thief; heat pumps claw half back) and ~10% at sustained 75-mph highway. Use the rating for comparison shopping, then knock 10% off for honest annual budgeting in a four-season climate.
How much does DC fast charging change the math?+
Dramatically — it's the gas-station business model with electrons: 40–60¢/kWh versus a 12–18¢ home rate. At 50¢/kWh and 3.0 mi/kWh, the EV costs 16.7¢/mile — more than a 30-MPG gas car at $3.55. An EV charged exclusively on fast chargers can genuinely cost more per mile than a Corolla. The economics work when the routine is home/workplace charging with fast charging reserved for trips; this calculator's break-even output shows your exact crossover price.
Do time-of-use rates really matter?+
They're often the single biggest lever: utilities with EV plans sell overnight electricity at 5–10¢/kWh — at 8¢ and 3.5 mi/kWh, that's 2.3¢/mile, a tenth of the gas car. The same utility's peak rate may be 35¢. A $50 smart-charging schedule (or the car's built-in scheduler) set to the super-off-peak window routinely halves annual charging cost. Check your utility's EV tariff before believing any generic savings claim, including this page's defaults.
What about maintenance — does it change the per-mile picture?+
It widens the EV's lead but belongs in a separate ledger: no oil changes, no plugs or belts, regenerative braking that doubles or triples brake life — fleet data typically shows 30–40% lower scheduled-maintenance cost per mile. Against it, budget tires (EVs wear them 10–20% faster from weight and torque) and the long-run battery question, which modern warranties (8 yr/100k+) mostly absorb. This calculator stays a fuel-only referee on purpose: it's the number people actually dispute.
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