EV Charging Cost Calculator: Home vs Public
EV Charging Cost Calculator: Home vs Public
One of the biggest advantages of driving an EV is the potential to slash your fuel costs. But “potential” depends on where and how you charge. Home charging is dramatically cheaper than public fast charging, and both vary by region, time of day, and your electricity rate.
Use our calculator to estimate your actual EV charging costs and compare them to gas.
Key Takeaways
- Home charging (Level 2) costs roughly $0.03-$0.06 per mile — about one-third the cost of gasoline.
- DC fast charging costs $0.08-$0.15 per mile — closer to gas but still often cheaper.
- Your local electricity rate is the biggest variable in home charging costs.
- Time-of-use rates can reduce home charging costs by 30-50% if you charge overnight.
- Over 15,000 miles per year, an EV saves $800-$1,500 in fuel compared to a 30 MPG gas car.
EV Charging Cost Calculator
[Calculator interface placeholder]
Inputs
| Field | Description | Example |
|---|---|---|
| EV efficiency | Miles per kWh (or kWh per 100 mi) | 3.5 mi/kWh |
| Annual miles driven | Your expected yearly mileage | 15,000 |
| Home electricity rate | $/kWh from your utility bill | $0.13 |
| % charged at home | Portion of charging done at home | 85% |
| DC fast charging rate | $/kWh at public fast chargers | $0.35 |
| % charged at DC fast | Portion done at public fast chargers | 15% |
Comparison Inputs
| Field | Description | Example |
|---|---|---|
| Gas price | Current price per gallon | $3.30 |
| Gas car MPG | Your comparison vehicle’s fuel economy | 30 MPG |
Outputs
| Result | EV | Gas Car |
|---|---|---|
| Annual fuel/energy cost | $XXX | $X,XXX |
| Monthly cost | $XX | $XXX |
| Cost per mile | $0.0X | $0.XX |
| 5-year fuel savings | $X,XXX | — |
Sample Scenarios
Scenario 1: Typical Home Charger
- EV: 3.5 mi/kWh efficiency, 15,000 mi/year
- 90% home charging at $0.13/kWh
- 10% DC fast charging at $0.35/kWh
- Annual EV cost: $578
- Equivalent gas car (30 MPG, $3.30/gal): $1,650
- Annual savings: $1,072
Scenario 2: Apartment Dweller (More Public Charging)
- EV: 3.2 mi/kWh efficiency, 12,000 mi/year
- 40% home/workplace charging at $0.15/kWh
- 60% public L2/DC charging at $0.30/kWh average
- Annual EV cost: $899
- Equivalent gas car: $1,320
- Annual savings: $421
Scenario 3: High-Mileage Driver (Rideshare)
- EV: 3.0 mi/kWh efficiency, 30,000 mi/year
- 80% home charging at $0.12/kWh
- 20% DC fast charging at $0.35/kWh
- Annual EV cost: $1,660
- Equivalent gas car (30 MPG): $3,300
- Annual savings: $1,640
For rideshare-specific analysis, see Best Cars for Uber/Lyft Drivers 2026.
Understanding Charging Costs
Home Charging (Level 2)
Your cost is determined by your utility’s electricity rate, typically $0.10-$0.25 per kWh in the US. The national average is about $0.13/kWh.
Time-of-use (TOU) rates: Many utilities offer lower rates during off-peak hours (typically 9 PM - 6 AM). If your utility offers TOU pricing, charging overnight can cost as little as $0.05-$0.08/kWh — cutting your home charging cost nearly in half.
How to find your rate: Check your utility bill for your per-kWh rate, or call your utility and ask about EV-specific rate plans.
Level 2 Public Charging
Public Level 2 chargers (found at malls, workplaces, hotels, and parking garages) typically charge:
- $0.15-$0.30/kWh, or
- $1-$3/hour, or
- Free (some workplaces and hotels)
DC Fast Charging
The fastest way to charge, but the most expensive:
- Tesla Supercharger: $0.25-$0.45/kWh (varies by location and membership)
- Electrify America: $0.31-$0.48/kWh (Pass+ members get lower rates)
- EVgo: $0.30-$0.45/kWh
- ChargePoint: Varies by station owner
Cost per Mile Comparison
| Fuel Type | Cost per Mile |
|---|---|
| EV (home, $0.13/kWh, 3.5 mi/kWh) | $0.037 |
| EV (DC fast, $0.35/kWh, 3.5 mi/kWh) | $0.100 |
| Hybrid (50 MPG, $3.30/gal) | $0.066 |
| Gas (30 MPG, $3.30/gal) | $0.110 |
| Gas (20 MPG, $3.30/gal) | $0.165 |
Home-charged EVs cost roughly one-third as much per mile as an average gas car.
Home Charging Setup Costs
If you are considering home charging, factor in the one-time installation cost:
| Item | Cost Range |
|---|---|
| Level 2 charger (unit) | $300-$700 |
| Electrician installation | $200-$1,500 |
| Panel upgrade (if needed) | $1,000-$3,000 |
| Typical total | $500-$2,200 |
Many utilities and states offer rebates for home charger installation ($200-$1,000), and the federal tax credit for home chargers (up to $1,000 / 30% of cost) may apply.
At $1,000+ in annual fuel savings, the charger pays for itself within 1-2 years.
EV Charging vs Gas: Break-Even Analysis
The question is not whether EVs are cheaper to fuel — they almost always are. The question is how quickly the fuel savings offset any purchase price premium.
For a detailed analysis including maintenance, insurance, and depreciation, see our comprehensive Gas vs Hybrid vs EV: Total Cost of Ownership Over 5 Years comparison.
Next Steps
- Run the calculator with your specific electricity rate and driving patterns.
- Check your utility for EV rate plans or time-of-use options.
- Research charger rebates — your utility, state, and the federal government may all offer incentives.
- Compare EV models — efficiency varies significantly. See Best EVs With 300+ Mile Range.
- Calculate total ownership cost — not just fuel. Use our Car Loan Calculator: Monthly Payment Estimator.
- Read our EV guide at EV Buyer’s Guide: Range, Charging, Costs, and Best Models for the complete picture.
The math is clear: charging an EV costs a fraction of fueling a gas car. The exact savings depend on your situation — run the numbers and see for yourself.
Vehicle specifications, pricing, and availability change frequently. Verify all details with manufacturers or dealers.