BMW i4 Running Costs (2026)
What it really costs to charge and run a BMW i4 — by country, vs petrol.
Updated 24 June 2026 · € / 100 km · figures current to Q2 2026
Also available: 🇺🇸 US version ($ / 100 mi) →
Charging cost — by country
At average residential electricity prices, 13.6 kWh/100 km (wall, incl. ~10% charging loss). Annual = 15,000 km/year.
| Country | €/kWh | €/100 km | Full charge | €/yr (15,000 km) |
|---|---|---|---|---|
| 🇧🇬 Bulgaria | 0.1300 | €1.77 | €11.74 | €265 |
| 🇵🇱 Poland | 0.2560 | €3.48 | €23.13 | €522 |
| 🇪🇸 Spain | 0.2610 | €3.55 | €23.58 | €532 |
| 🇫🇷 France | 0.2660 | €3.62 | €24.03 | €543 |
| 🇩🇪 Germany | 0.3835 | €5.22 | €34.64 | €782 |
Your exact cost in 10 seconds
Pre-filled for the i4 (81.3 kWh, 13.6 kWh/100 km). Pick your country, tariff and mileage for your real monthly & 5-year cost.
EV vs petrol
BMW 420i Gran Coupé 184hp: 6.9 L/100 km (WLTP) × €1.82/L. i4 runs 58% cheaper per km in Germany, 69% on average across the EU.
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 €12 in Bulgaria and €35 in Germany (battery ÷ 0.9 for ~10% AC charging loss). Per 100 km that is €1.77–€5.22.
What is the i4 cost per 100 km?
On home electricity the i4 costs €1.77 per 100 km in Bulgaria (cheapest) up to €5.22 in Germany (priciest), based on real-world 13.6 kWh/100 km.
Is the i4 cheaper to run than petrol?
Yes — on energy it runs about 69% cheaper per km than a comparable BMW 420i Gran Coupé 184hp, before lower maintenance and any incentives. Across 15,000 km/year that is a meaningful annual saving in every market shown.
How long does the i4 take to fast-charge?
It charges at up to 205 kW on DC, taking about 28 minutes from 10–80%, and up to 11 kW on a home/AC wallbox.
Sources
- EV Database — BMW i4 real-world efficiency & WLTP range
- Eurostat, electricity price statistics H1 2025 (residential, incl. all taxes)
- Mappr.co / GlobalPetrolPrices.com, June 2026
- ICE reference (BMW 420i Gran Coupé 184hp) — WLTP combined (range 6.6–7.3, midpoint) — auto-data.net
Methodology: cost = efficiency × tariff; a full 0→100% home charge draws battery ÷ 0.9 (≈10% AC charging loss). EU in €/100 km; reproducible from the figures above. Excludes maintenance, insurance, depreciation and public fast-charging. Educational — not financial advice.