BMW i4 Running Costs (2026)
What it really costs to charge and run a BMW i4 — by US state, vs gas.
Updated 24 June 2026 · $ / 100 mi · figures current to Q2 2026
Also available: 🇪🇺 EU version (€ / 100 km) →
Charging cost — by US state
At average residential electricity prices, 30 kWh/100 mi (wall, incl. ~10% charging loss). Annual = 12,000 mi/year.
| State | ¢/kWh | $/100 mi | Full charge | $/yr (12,000 mi) |
|---|---|---|---|---|
| 💧 Washington | 14.11 | US$4.23 | US$12.75 | US$508 |
| 🤠 Texas | 15.41 | US$4.62 | US$13.92 | US$555 |
| 🌴 Florida | 15.80 | US$4.74 | US$14.27 | US$569 |
| 🇺🇸 US average | 17.65 | US$5.3 | US$15.94 | US$635 |
| 🌞 California | 33.22 | US$9.97 | US$30.01 | US$1,196 |
Your exact cost in 10 seconds
Pre-filled for the i4 (81.3 kWh, 30 kWh/100 mi). Pick your state, tariff and mileage for your real monthly & 5-year cost.
EV vs gas
BMW 430i Coupé 2024: 28 MPG × US$3.93/gal. i4 runs 62% cheaper per mi at US average rates, 63% on average across states.
BMW i4 — key specs
Frequently asked questions
How much does it cost to charge a BMW i4 at home?
A full 0→100% home charge of the 81.3 kWh battery costs about US$13 in Washington and US$30 in California (battery ÷ 0.9 for ~10% AC charging loss). Per 100 mi that is US$4.23–US$9.97.
What is the i4 cost per 100 mi?
On home electricity the i4 costs US$4.23 per 100 mi in Washington (cheapest) up to US$9.97 in California (priciest), based on EPA 30 kWh/100 mi.
Is the i4 cheaper to run than gas?
Yes — on energy it runs about 63% cheaper per mi than a comparable BMW 430i Coupé 2024, before lower maintenance and any incentives. Across 12,000 mi/year that is a meaningful annual saving in every market shown.
How fast does the i4 charge?
Peak DC fast-charging is 205 kW via the CCS1 connector.
Sources
- EPA fueleconomy.gov — BMW i4 efficiency, range, MPGe
- EIA residential electricity, via electricchoice.com (Feb 2026 data)
- AAA State Gas Price Averages, June 24 2026
- ICE reference (BMW 430i Coupé 2024) — EPA combined — fueleconomy.gov
Methodology: cost = efficiency × tariff; a full 0→100% home charge draws battery ÷ 0.9 (≈10% AC charging loss). US in $/100 mi; reproducible from the figures above. Excludes maintenance, insurance, depreciation and public fast-charging. Educational — not financial advice.