EV Charging Cost Calculator

About the EV Charging Cost Calculator

Charging an electric vehicle is dramatically cheaper than fueling a gas car — but costs vary widely depending on where and how you charge. Home charging at average US electricity rates costs $0.03–$0.05 per mile. Public Level 2 chargers cost $0.05–$0.10 per mile. DC fast charging can cost $0.10–$0.20+ per mile.

This calculator estimates your charging cost based on your EV's battery size, local electricity rates (home) or per-kWh pricing (public), and your driving patterns. For most EV owners, 80–90% of charging happens at home overnight.

Understanding your charging costs is essential for comparing EV ownership to gas vehicles and for budgeting your monthly transportation expenses.

When This Page Helps

EV charging costs vary 5x depending on the charging method. This calculator helps you understand the true cost of charging at home versus public stations, so you can minimize expenses and accurately compare to gasoline costs.

How to Use the Inputs

1. Enter your EV's battery capacity in kWh.
2. Enter your electricity rate (home) or charging price (public).
3. Enter the starting and ending state of charge.
4. See the cost of the charging session.
5. Enter your monthly miles for ongoing cost estimates.
6. Compare home vs. public charging costs.

Example Calculation

Tips & Best Practices

• Home charging overnight is cheapest — often $0.03–$0.05 per mile.
• Time-of-use electricity plans can cut home charging costs by 30–50%.
• DC fast charging costs 2–4x more than home charging per kWh.
• Charge to 80% for fastest DCFC sessions; the last 20% is much slower.
• Some workplaces offer free or discounted EV charging.
• Charging networks like Tesla Supercharger, Electrify America, and ChargePoint have different pricing.
• Many states offer EV-specific electricity rate plans.

Home Charging Economics

At the US average of $0.14/kWh, charging costs about $0.04/mile. In states with cheap electricity (WA, OR, ND at $0.10/kWh), it's $0.03/mile. In expensive states (CA, CT, MA at $0.25/kWh), it's $0.07/mile. Even in the most expensive state, EV charging is cheaper per mile than gas.

Public Charging Tiers

Level 2 (AC, 3–19 kW): Usually free–$0.30/kWh. Cost per mile: $0.03–$0.09. DC Fast Charging (50–350 kW): $0.30–$0.50/kWh. Cost per mile: $0.08–$0.15. Tesla Supercharger: $0.25–$0.50/kWh for Tesla, varies for others.

Monthly Charging Budget

For 1,000 miles/month at 3.5 mi/kWh: Home (all): ~$40. Home 80% + DCFC 20%: ~$60. Public L2 (all): ~$70. DCFC (all): ~$115. Equivalent gas car: ~$125. Home charging delivers the biggest savings.

Solar Charging

With a home solar system, EV charging can be virtually free after the solar investment pays back. A 7 kW solar system generates enough for 25–30 miles/day of driving in sunny areas. The combined solar + EV investment pays back in 5–8 years through gas and electricity savings.

Frequently Asked Questions

• How much does it cost to charge an EV at home?

  At the US average electricity rate of $0.14/kWh, fully charging a 75 kWh EV costs about $10.50. Most people charge from 20% to 80% (45 kWh), costing about $6.30. Monthly cost for 1,000 miles at 3.5 mi/kWh is about $40.

• How does DC fast charging pricing work?

  DCFC networks charge $0.30–$0.50/kWh, sometimes with session fees ($1–$5) or idle fees after charging completes. At $0.40/kWh, a 45 kWh session costs $18 — about 3x home charging but still cheaper than gas per mile.

• Is charging an EV cheaper than gas?

  Almost always. At $0.14/kWh and 3.5 mi/kWh, electricity costs $0.04/mile. Gas at $3.50/gallon and 28 MPG costs $0.125/mile. That's about 70% savings. Even DCFC at $0.12/mile is cheaper than gas.

• What about time-of-use electricity rates?

  Many utilities offer off-peak rates of $0.05–$0.10/kWh vs. peak rates of $0.25–$0.45/kWh. Charging overnight at off-peak rates can cut your charging cost by 40–70%. Most EVs can be scheduled to charge during off-peak hours.

• Do charging network memberships save money?

  Yes. Electrify America Pass+ ($4/month) reduces per-kWh pricing. Tesla Supercharger offers different rates for Tesla vs non-Tesla vehicles. ChargePoint costs vary by station owner. Compare plans based on your usage pattern.

• How much will my electricity bill increase?

  The average EV adds about 250–350 kWh/month to household electricity consumption (1,000–1,200 miles/month). At $0.14/kWh, that's $35–$50/month added to your bill. Compare this to $100–$200/month in gasoline for an equivalent gas car.