EV vs Fuel Cost Calculator
EV vs Fuel Cost Calculator – Compare Electric Cars vs Petrol & Diesel Instantly
Are you wondering is an electric car cheaper than petrol or diesel?
Our EV vs fuel cost calculator helps you instantly compare:
- ✅ EV charging cost vs petrol cost
- ✅ EV charging cost vs diesel cost
- ✅ Cost per mile or km comparison
- ✅ Monthly and annual driving cost difference
- ✅ Long-term savings of electric vs gas cars
Whether you’re considering switching to an EV or evaluating total cost of ownership, this calculator shows exactly how much you can save by driving electric.
What This EV vs Fuel Calculator Does
This calculator compares:
- Electric vehicle charging cost
- Petrol vehicle fuel cost
- Diesel vehicle fuel cost
It calculates:
- Cost per mile (or km)
- Monthly fuel vs electricity cost
- Annual driving cost
- Total savings over time
It works for all EV brands including Tesla, Volkswagen, BMW, Hyundai and Kia.
How the EV vs Fuel Cost Calculator Works
The tool uses standardized energy and fuel cost formulas to ensure accurate comparisons.
Step 1: Calculate EV Driving Cost
EV Cost per km = (Energy Consumption × Electricity Price)
Example:
- EV consumption: 18 kWh/100 km
- Electricity price: $0.20 per kWh
18 × 0.20 = $3.60 per 100 km
Cost per km = $0.036
Step 2: Calculate Petrol Cost
Petrol Cost per km = (Fuel Consumption × Fuel Price)
Example:
- Petrol car: 7 L/100 km
- Fuel price: $1.80 per liter
7 × 1.80 = $12.60 per 100 km
Cost per km = $0.126
Step 3: Compare the Difference
Savings per km:
$0.126 – $0.036 = $0.09 saved per km
If you drive 15,000 km per year:
15,000 × $0.09 = $1,350 annual savings
This shows clearly that electric cars are significantly cheaper to run than petrol cars in most regions.
How Much Cheaper Is an Electric Car Than Petrol?
Let’s compare typical annual costs:
| Vehicle Type | Cost per 100 km | Annual Cost (15,000 km) |
|---|---|---|
| EV | $3.60 | $540 |
| Petrol | $12.60 | $1,890 |
| Diesel | $11.20 | $1,680 |
Estimated savings:
- EV vs Petrol: $1,350 per year
- EV vs Diesel: $1,140 per year
The EV vs petrol savings calculator clearly shows long-term financial advantages.
Monthly EV vs Gas Cost Comparison
If you drive 1,250 km per month:
- EV: 1,250 × $0.036 = $45
- Petrol: 1,250 × $0.126 = $157.50
Monthly savings: ~$112
That’s over $1,300 per year.
Long-Term Savings: 5-Year Comparison
Over 5 years (15,000 km/year):
- EV total: $540 × 5 = $2,700
- Petrol total: $1,890 × 5 = $9,450
5-year savings: $6,750
This does not include:
- Lower EV maintenance costs
- Regenerative braking savings
- Reduced engine servicing
- Potential tax incentives
Factors That Affect EV vs Fuel Cost Comparison
Several variables influence your results:
⚡ Electricity Price
Home charging is usually cheapest.
⛽ Fuel Price
Petrol and diesel prices fluctuate significantly.
🔋 Vehicle Efficiency
More efficient EVs reduce cost per km.
🛣 Driving Distance
Higher mileage increases savings.
🌍 Region
Different countries have different energy and fuel costs.
Is It Cheaper to Charge at Home or Buy Petrol?
In most regions:
- Home electricity: $0.15–$0.30 per kWh
- Petrol: $1.50–$2.20 per liter
This makes charging an EV at home significantly cheaper than filling a petrol tank.
Public fast charging may reduce savings slightly but is often still competitive.
Why Use This EV vs Fuel Calculator?
This tool provides:
- Transparent cost formulas
- Km and mile conversion
- Adjustable electricity and fuel prices
- Monthly and annual cost breakdowns
- Multi-currency compatibility
It’s designed for:
- Private car buyers
- Fleet managers
- Sustainability planners
- Budget-conscious drivers
Frequently Asked Questions
Is electric cheaper than petrol?
In most cases, yes—especially when charging at home.
How much can I save per year with an EV?
Typically $1,000–$2,000 depending on mileage and fuel prices.
Does diesel compete with EV costs?
Diesel is usually cheaper than petrol but still more expensive than electric charging.
Is fast charging more expensive?
Yes, but often still competitive compared to fuel.
Use the EV vs Fuel Cost Calculator Now
Enter:
- EV consumption (kWh per 100 km or per mile)
- Electricity price
- Petrol or diesel consumption
- Fuel price
- Annual mileage
Instantly calculate:
- Cost per mile or km
- Monthly cost difference
- Annual savings
- 5-year savings projection
This EV vs fuel cost calculator gives you a clear, data-driven comparison to decide whether switching to electric makes financial sense.