WattMath

EV Charging Cost Calculator

Estimate your electric vehicle charging costs at home and public stations, and compare annual fuel costs to a gas-powered vehicle.

EV Details

60-100 kWh typical for EVs

3-4 miles/kWh typical

US average: 12,000 mi/year

80-90% typical for home owners

US average: $0.12/kWh

$0.30-$0.50/kWh typical DC fast

Gas Vehicle Comparison

Check local prices

25-35 MPG typical for sedans

EV Charging

EV owners typically save 50-70% on fuel costs compared to gas vehicles. Most charging happens at home overnight, making EVs convenient and cost-effective.

  • Home charging: $0.08-$0.15/kWh
  • DC fast charging: $0.30-$0.50/kWh
  • Average EV: 3-4 miles per kWh

How to Use

  1. Enter your EV's battery size and efficiency
  2. Set your electricity rate and driving habits
  3. Click Calculate to see charging costs and savings

FAQ

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

At the U.S. average electricity rate of $0.12/kWh, charging a 60 kWh battery costs about $7.20 for a full charge. This typically provides 180-240 miles of range, costing roughly $0.03-0.04 per mile.

Is public charging more expensive?

Yes, DC fast charging typically costs $0.30-$0.50 per kWh—about 3x home charging rates. However, it's still usually cheaper than gas, and many EV owners only use public charging for road trips.

What affects EV efficiency?

Temperature has the biggest impact—cold weather can reduce range by 20-40%. Highway speeds, aggressive driving, HVAC use, and vehicle weight also affect efficiency. Most EVs get 3-4 miles per kWh in normal conditions.