🌱Energy & Environment

Electric Car vs Petrol: Complete Cost Comparison

Is an electric car really cheaper to run than a petrol car? This guide provides a complete cost breakdown including fuel/electricity, maintenance, insurance, and depreciation to help you make an informed decision.

4 min read
January 1, 2026
Updated: Jan 10, 2026
Electric car and petrol car side by side for cost comparison

EV vs Petrol: Quick Cost Summary

Electric vehicles have higher purchase prices but significantly lower running costs:

Cost CategoryElectric CarPetrol CarEV Advantage
Purchase price+€5-15k higherLowerPetrol wins
Fuel/Energy (per 100 km)€3-5€10-15EV 60-70% cheaper
Maintenance (annual)€200-400€500-1,000EV 50-60% cheaper
InsuranceSimilar or +10%BaselineVaries
Road taxOften €0 or reduced€100-500EV wins
DepreciationHigher initiallyMore stableVaries

Fuel vs Electricity Cost Comparison

The biggest savings come from energy costs:

Cost per 100 km Calculation

Petrol car: Cost = (L/100km) × Fuel price 7 L/100km × €1.80/L = €12.60 per 100 km Electric car: Cost = (kWh/100km) × Electricity price 17 kWh/100km × €0.25/kWh = €4.25 per 100 km Savings: €8.35 per 100 km = 66%!

EV vs Petrol Energy Comparison

Compare energy costs between EV and petrol vehicles. An efficient EV uses about 17 kWh/100km, while a petrol car uses about 7 L/100km. At €0.25/kWh and €1.80/L: EV cost = 17 × 0.25 = €4.25/100km. Petrol cost = 7 × 1.80 = €12.60/100km. The EV saves 66% on fuel costs.

Try the Calculator

Use our free Miles to Kilometers converter for instant, accurate results.

📏Convert mikm

Annual Fuel/Energy Costs

For 15,000 km per year:

Vehicle TypeConsumptionAnnual Costvs. Avg Petrol
Petrol (7 L/100km)1,050 L€1,890Baseline
Petrol (9 L/100km)1,350 L€2,430+29%
Diesel (6 L/100km)900 L€1,530-19%
Hybrid (4 L/100km)600 L€1,080-43%
EV - Home charging2,550 kWh€510-73%
EV - Public charging2,550 kWh€1,020-46%
EV - Mixed charging2,550 kWh€680-64%

Understanding EV Charging Costs

Where you charge dramatically affects EV running costs:

Charging TypeCost per kWhCost per 100 km*Notes
Home (off-peak)€0.10-0.15€1.70-2.55Cheapest option
Home (standard)€0.20-0.35€3.40-5.95Most common
Workplace (free)€0.00€0.00Great if available
Public AC€0.35-0.50€5.95-8.50Destination charging
DC Fast (branded)€0.45-0.60€7.65-10.20Tesla, Ionity, etc.
DC Fast (premium)€0.70-0.90€11.90-15.30Highway premium
Electric car charging next to petrol station pump

Maintenance Cost Comparison

EVs have significantly lower maintenance costs due to simpler mechanics:

Why EV Maintenance Is Cheaper

EVs have no: • Oil changes (saves €100-200/year) • Timing belts (saves €500-1,000 every 100k km) • Exhaust system repairs • Clutch replacements • Spark plugs • Fuel filters EVs still need: • Tire rotations (similar) • Brake fluid (every 2-3 years) • Cabin air filter (annual) • Wiper blades (annual) Brakes last 2-3× longer due to regenerative braking!

Annual Maintenance Costs

Typical annual maintenance for 15,000 km:

ServicePetrol CarElectric CarEV Savings
Oil change€150-250€0€150-250
Air filter€30-50€30-50€0
Brake pads (amortized)€100-150€40-60€60-90
Spark plugs (amortized)€50-80€0€50-80
Transmission service€50-100€0€50-100
Other services€100-200€100-150€0-50
**Total annual****€480-830****€170-260****€310-570**

Total Cost of Ownership (5 Years)

Complete 5-year comparison for a mid-size vehicle (15,000 km/year):

CostPetrol CarElectric CarDifference
Purchase price€35,000€45,000+€10,000
Government incentive€0-€5,000-€5,000
Fuel/Electricity€9,450€3,400-€6,050
Maintenance€3,500€1,200-€2,300
Insurance (5 yrs)€4,000€4,400+€400
Road tax (5 yrs)€1,000€0-€1,000
Depreciation€14,000€18,000+€4,000
**Total 5-year cost****€66,950****€67,000****≈ Equal**

When Does an EV Break Even?

The breakeven point depends on your driving and charging patterns:

Breakeven Calculation

Breakeven km = Price difference ÷ Savings per km Example: €10,000 price premium (after incentives) ÷ €0.08 per km savings = 125,000 km breakeven At 15,000 km/year = 8.3 years At 25,000 km/year = 5 years At 40,000 km/year = 3.1 years High-mileage drivers benefit most from EVs!

Environmental Cost Comparison

Beyond financial costs, EVs have significant environmental advantages:

ImpactPetrol CarElectric CarEV Advantage
CO₂ per 100 km (driving)16.1 kg7.1 kg*56% less
Annual CO₂ (15,000 km)2,415 kg1,065 kg1,350 kg saved
Lifetime CO₂ (200,000 km)32.2 tonnes14.2 tonnes18 tonnes saved
Local air pollutionHigh (NOx, PM)Zero100% reduction
Noise pollutionModerateVery lowMuch quieter

Who Should Buy an EV?

EVs make the most financial sense if you:

✅ **Drive 15,000+ km per year** - Higher mileage = faster savings ✅ **Can charge at home** - Home charging is 50-70% cheaper than public ✅ **Have access to incentives** - Tax credits, purchase grants reduce upfront cost ✅ **Keep cars 5+ years** - Longer ownership = more savings ✅ **Do mostly urban/suburban driving** - EVs excel in stop-and-go traffic

EVs may not be ideal if you: ❌ Drive very low annual mileage (<8,000 km) ❌ Cannot charge at home or work ❌ Frequently drive very long distances without charging infrastructure ❌ Plan to sell the car within 2-3 years

Frequently Asked Questions

Yes, significantly. Electricity costs 50-75% less than petrol per km, and maintenance costs 50-60% less. A typical EV saves €1,000-2,000 per year in running costs compared to a petrol car.

Part of the Electric Vehicles hub — explore the connected calculators, guides and topics.

Free calculator — Electric Vehicles

EV Charging Cost Calculator

Cost per session, per 100 km, per year — plus savings vs petrol and CO₂ avoided, with editable home/public tariff split.

Open calculator