EV Running Costs vs Petrol 2026: Country-by-Country Cost Per Kilometre
The running cost of an electric car vs a petrol car has become one of the most frequently asked questions in personal finance. The answer is not simple — it depends critically on electricity tariffs, whether you can charge at home, petrol prices in your country, and how many kilometres you drive per year. This analysis compares the per-kilometre cost across six major markets using 2026 prices.
For live petrol prices in your country, use the fuel price explorer. For a detailed EV cost guide, see our EV running costs guide.
Methodology
Calculations use a mid-size family car in each segment:
- EV reference: 18 kWh/100 km consumption (representative of a VW ID.4, Tesla Model 3, or Hyundai Ioniq 6)
- Petrol reference: 7.5 l/100 km consumption (representative of a VW Golf, Toyota Corolla, or Ford Focus)
- Home charging: Overnight domestic tariff including any off-peak EV tariff where available
- Public rapid charging: 50–150 kW DC charger commercial rate
- Petrol price: 2026 average self-service 95 RON petrol, local pump price including all taxes
Country-by-country running cost comparison
| Country | Petrol price (local, /l) | Home electricity (/kWh) | EV home cost/100km | Petrol car cost/100km | Saving (home EV) |
|---|---|---|---|---|---|
| UK | ~148p | ~24p | ~432p (~£4.32) | ~1,110p (~£11.10) | ~61% |
| Germany | ~€1.78 | ~€0.30 | ~€5.40 | ~€13.35 | ~60% |
| France | ~€1.77 | ~€0.22 | ~€3.96 | ~€13.28 | ~70% |
| Spain | ~€1.60 | ~€0.19 | ~€3.42 | ~€12.00 | ~72% |
| USA | ~$3.45/gal (~$0.91/l) | ~$0.16 | ~$2.88 | ~$6.83 | ~58% |
| Australia | ~A$1.85 | ~A$0.32 | ~A$5.76 | ~A$13.88 | ~58% |
| Norway | ~€2.05 | ~€0.12 | ~€2.16 | ~€15.38 | ~86% |
Norway illustrates the extreme: very cheap electricity (abundant hydro power) plus very expensive petrol (high taxes) creates an 86% per-km running cost saving for home-charged EVs — the single largest driver of Norway's 90%+ EV market share for new cars. France's nuclear electricity provides the next-strongest running cost case in Western Europe.
For petrol price context by country, see our analyses of UK petrol prices 2026, Germany, France, and US petrol prices 2026.
The critical split: home charging vs public charging
The running cost advantage of EVs depends heavily on how you charge:
| Charging method | UK cost/100km | Germany cost/100km | France cost/100km |
|---|---|---|---|
| Home overnight (standard tariff) | ~£4.32 | ~€5.40 | ~€3.96 |
| Home overnight (EV off-peak tariff) | ~£2.70–3.24 | ~€4.50 | ~€3.15 |
| Destination charging (hotel/workplace, slow) | ~£3.60–5.40 | ~€4.50–7.20 | ~€3.60–5.40 |
| Public rapid charger (50–150 kW DC) | ~£13.50–15.30 | ~€9.00–12.60 | ~€7.20–9.00 |
| Petrol car reference | ~£11.10 | ~€13.35 | ~€13.28 |
At UK rapid charger rates (75–85p/kWh), EV cost per 100km is higher than a petrol car. Drivers reliant entirely on public charging — typically flat-dwellers without a home charger — face a much weaker economic case for EV ownership. The electricity pricing structure of rapid chargers (which includes network fees, payment processing, and profit) is fundamentally different from domestic tariffs.
Total cost of ownership: when does an EV pay back?
The fuel saving advantage must offset the purchase price premium. In 2026, EVs still command a premium over equivalent petrol models, though the gap is narrowing:
| Factor | Typical EV premium | Annual saving (15,000 km/yr) | Payback period |
|---|---|---|---|
| UK home charger | £5,000–10,000 | ~£1,020/yr fuel + ~£400 maintenance | ~3.5–7 years |
| Germany home charger | €6,000–12,000 | ~€1,194/yr fuel + ~€450 maintenance | ~3.7–7.3 years |
| France home charger | €5,000–10,000 | ~€1,398/yr fuel + ~€400 maintenance | ~2.8–5.6 years |
| UK public charger only | £5,000–10,000 | ~−£350/yr (more expensive than petrol) | Never (more expensive) |
For a detailed TCO breakdown including depreciation, insurance, and servicing, see our guide on diesel vs petrol vs EV cost of ownership.
Grid carbon and the EV environmental case
Running cost is one dimension; carbon credentials another. An EV charged on a coal-heavy grid may produce more lifecycle CO₂ than a modern petrol car. In 2026:
- France: ~60g CO₂/kWh grid → EV lifecycle CO₂ well below petrol; strongest environmental case
- Norway: ~20g CO₂/kWh → near-zero operational emissions
- Germany: ~350g CO₂/kWh → EV still cleaner than petrol but margin smaller
- Australia: ~480g CO₂/kWh → EV lifecycle advantage exists but smaller
- Poland: ~700g CO₂/kWh → EV provides marginal or no CO₂ benefit vs modern petrol
For the broader energy transition context, see our glossary entry on energy transition.
Frequently asked questions
-
Is it cheaper to run an electric car than a petrol car?
- Yes, for home-charger users in most countries. Home-charged EVs cost 58–72% less per 100km than equivalent petrol cars in the UK, Germany, France, US, and Australia. The advantage disappears with public rapid charging, where rates approach or exceed petrol running costs. The key question is whether you can charge at home.
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How does electricity price affect EV running costs?
- Electricity price is the dominant variable. A typical EV uses 18 kWh/100km. At UK home tariff (24p/kWh) that is £4.32/100km — vs £11.10/100km for petrol. At a UK rapid charger (80p/kWh), it rises to £14.40/100km — more expensive than petrol. France's cheap nuclear electricity (~€0.22/kWh) makes EVs among the most cost-effective in Europe.
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What is the total cost of ownership of an EV vs petrol car?
- EVs typically cost €5,000–15,000 more to buy than equivalent petrol models in 2026, but save €1,000–2,500/year in fuel and €300–600/year in maintenance. For home-charger users driving 15,000 km/year, TCO parity with petrol is typically reached in 3.5–7 years. Public-charger-only users may never reach parity on running costs alone.