EV Home Charging Cost Calculator: EUR per km vs. Petrol (2026)
Charging an electric vehicle at home costs EUR 0.03-0.05 per km, compared to EUR 0.10-0.15/km for petrol cars. Over 15,000 km/year, an EV owner saves EUR 1,200-1,800 on fuel—plus far lower maintenance costs. Here's how to calculate your exact charging cost.
How to Calculate EV Charging Cost
- Step 1: Find your car's energy consumption (check manual or EPA rating). Example: 20 kWh/100 km
- Step 2: Check your electricity rate (EUR/kWh). Example: EUR 0.25/kWh
- Step 3: Multiply: 20 kWh ÷ 100 km = 0.2 kWh/km
- Step 4: Calculate cost: 0.2 kWh/km × EUR 0.25/kWh = EUR 0.05/km
Switch to off-peak charging. If your electricity supplier offers Economy 7 (cheap nighttime rates), charge between 22:00-08:00 to cut charging costs by 40-50%.
EV vs. Petrol Cost Comparison (Annual)
| Vehicle Type | Annual Distance | Fuel/Energy Cost | Annual Savings vs. Petrol |
|---|---|---|---|
| Petrol car (7 L/100km) | 15,000 km | EUR 2,100 | Baseline |
| EV (20 kWh/100km @ EUR 0.25/kWh) | 15,000 km | EUR 750 | EUR 1,350 |
| EV (off-peak only, EUR 0.15/kWh) | 15,000 km | EUR 450 | EUR 1,650 |
| Hybrid (5.5 L/100km + electricity) | 15,000 km | EUR 1,400 | EUR 700 |
Home Charger Types & Installation Costs
- Level 1 (standard outlet, 2-3 kW): EUR 0 (uses existing outlet), adds 5-8 km range/hour. Slow but free.
- Level 2 (wall-mounted, 7-11 kW): EUR 500-1,500 installation, adds 25-50 km range/hour. Recommended for most homes.
- Level 3 (DC fast charge, 50+ kW): EUR 3,000-5,000 installation, adds 200+ km in 20-30 min. For apartments/commercial only.
- Smart charger (with scheduler): EUR 200-400 extra, lets you charge during cheap off-peak hours automatically
Smart Charging to Cut Costs 30%
- Charge between 22:00-08:00 (if your supplier offers off-peak rates). Cost: EUR 0.03-0.05/km instead of EUR 0.05-0.07/km.
- Use a smart charger with scheduler (EUR 200-400 installation). It auto-starts charging when electricity prices drop.
- Consider time-of-use tariffs (TOU). If your supplier offers TOU rates with very cheap off-peak hours (EUR 0.12-0.15/kWh), switching pays for smart charger in 1-2 years.
- Avoid peak-hour charging (17:00-21:00). This is the most expensive time.
Real-world example: A 60 kWh battery EV charged fully costs EUR 15 on standard rates (EUR 0.25/kWh) vs. EUR 9 on off-peak rates (EUR 0.15/kWh). Over 50 full charges/year, that's EUR 300 annual savings—paying for a smart charger in 8 months.
Frequent fast charging slightly degrades battery lifespan. Modern EV batteries degrade ~0.5-1% per year with normal use. Use fast charging only for long trips; home Level 2 charging is gentler on your battery.
typical EV owner (15,000 km/year, home charging)
Beyond fuel savings, EV owners also save on maintenance: no oil changes, spark plugs, transmissions, or mufflers. Service costs are typically 50-70% lower than petrol cars. Total annual savings often exceed EUR 2,000.
Assess Your Full Energy Costs
Our calculator breaks down electricity, heating, water, and transportation costs to show your total savings potential.
Calculate SavingsHow much are you overpaying?
Take our free 2-minute assessment and find your top 3 energy wasters.
Start Free Assessment →Sparky is EnergyVision's AI energy guardian - a cute electric fox superhero who fights energy waste villains. Powered by the latest AI models, Sparky analyzes consumption patterns, finds hidden costs,...