EV Charging Cost Calculator

Calculate EV charging costs & savings

Annual Savings vs Gas

$776

EV Cost/Year

$624

Gas Cost/Year

$1,400

Cost/Mile

$0.052

Annual Miles

Efficiency (mi/kWh)

Home Rate ($/kWh)

Public Rate ($/kWh)

Home Charging: 80%

0% (all public)100% (all home)

Battery Size (kWh)

Comparable MPG

Gas Price ($/gal)

Annual Savings

$776

Cost/Mile

$0.052

Monthly Home Cost

$32

Charge Time (Level 2)

10.4 hrs

Home vs Public Charging

Home Charging/Year$384

Public Charging/Year$240

Gas Cost/Year$1,400

Cost Breakdown

Home Charging$384/yr

Public Charging$240/yr

Total EV Cost$624/yr

Gas Cost$1,400/yr

kWh/Year3,429

Frequently Asked Questions

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

At average US rates ($0.14/kWh), charging a 75 kWh battery costs about $10.50 for 250+ miles. Annual cost depends on miles driven—typically $500-1000/year for 12,000 miles.

Home vs public charging cost?

Home charging: $0.10-0.20/kWh. Public Level 2: $0.20-0.40/kWh. DC Fast Charging: $0.30-0.50/kWh. Home charging is almost always cheapest—charge at home when possible.

How does EV compare to gas cost per mile?

EV: ~$0.04-0.05/mile (home charging). Gas (30 MPG, $3.50/gal): ~$0.12/mile. EV costs about 60-70% less per mile. Savings increase with higher gas prices.

What is EV efficiency (mi/kWh)?

Efficiency varies by vehicle: compact EVs 4+ mi/kWh, sedans 3-4 mi/kWh, SUVs/trucks 2.5-3.5 mi/kWh. Higher is better. Check your vehicle's EPA rating.

How long to charge at home?

Level 1 (120V): 3-5 mi/hour. Level 2 (240V): 25-30 mi/hour. DC Fast: 100-200 mi in 30 min. Most people charge overnight with Level 2.

Does EV charging increase electric bill significantly?

For 12,000 miles/year at average rates, expect $40-80/month increase. Many utilities offer EV rates with cheaper overnight charging to reduce costs further.

Example Calculations

112,000 Miles/Year, 80% Home Charging

Inputs

Annual Miles12,000

EV Efficiency3.5 mi/kWh

Home Rate$0.14/kWh

Public Rate$0.35/kWh

Home Charging80%

Comparable MPG30

Gas Price$3.50/gal

Result

Annual Savings vs Gas$776

EV Cost/Year$624

Gas Cost/Year$1,400

Cost Per Mile$0.052

Monthly Home Cost$32

kWh/Year = 12,000 / 3.5 = 3,429. Home kWh = 3,429 x 80% = 2,743 x $0.14 = $384. Public kWh = 3,429 x 20% = 686 x $0.35 = $240. Total EV = $624. Gas = (12,000 / 30) x $3.50 = $1,400. Savings = $1,400 - $624 = $776.

215,000 Miles/Year, 100% Home Charging

Inputs

Annual Miles15,000

EV Efficiency4.0 mi/kWh

Home Rate$0.12/kWh

Public Rate$0.35/kWh

Home Charging100%

Comparable MPG28

Gas Price$3.80/gal

Result

Annual Savings vs Gas$1,586

EV Cost/Year$450

Gas Cost/Year$2,036

Cost Per Mile$0.030

Monthly Home Cost$38

kWh/Year = 15,000 / 4.0 = 3,750. All home charging: 3,750 x $0.12 = $450. Gas = (15,000 / 28) x $3.80 = $2,036. Savings = $2,036 - $450 = $1,586 per year.

Formulas Used

Annual kWh Consumption

kWh/Year = Annual Miles / Efficiency (mi/kWh)

Total electricity needed per year based on driving distance and vehicle efficiency.

Where:

Annual Miles= Total miles driven per year

Efficiency= Vehicle efficiency in miles per kWh

Annual EV Charging Cost

EV Cost = (Home kWh x Home Rate) + (Public kWh x Public Rate)

Total annual charging cost split between home and public charging.

Where:

Home kWh= kWh/Year x Home Charging Percentage

Home Rate= Cost per kWh at home (e.g., $0.14)

Public kWh= kWh/Year x (1 - Home Charging Percentage)

Public Rate= Cost per kWh at public chargers (e.g., $0.35)

Annual Savings vs Gasoline

Savings = (Annual Miles / MPG x Gas Price) - EV Charging Cost

Annual fuel cost savings compared to an equivalent gasoline vehicle.

Where:

MPG= Comparable gas car fuel economy

Gas Price= Price per gallon of gasoline

Frequently Asked Questions

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

At average US rates ($0.14/kWh), charging a 75 kWh battery costs about $10.50 for 250+ miles. Annual cost depends on miles driven—typically $500-1000/year for 12,000 miles.

Home vs public charging cost?

Home charging: $0.10-0.20/kWh. Public Level 2: $0.20-0.40/kWh. DC Fast Charging: $0.30-0.50/kWh. Home charging is almost always cheapest—charge at home when possible.

How does EV compare to gas cost per mile?

EV: ~$0.04-0.05/mile (home charging). Gas (30 MPG, $3.50/gal): ~$0.12/mile. EV costs about 60-70% less per mile. Savings increase with higher gas prices.

What is EV efficiency (mi/kWh)?

Efficiency varies by vehicle: compact EVs 4+ mi/kWh, sedans 3-4 mi/kWh, SUVs/trucks 2.5-3.5 mi/kWh. Higher is better. Check your vehicle's EPA rating.

How long to charge at home?

Level 1 (120V): 3-5 mi/hour. Level 2 (240V): 25-30 mi/hour. DC Fast: 100-200 mi in 30 min. Most people charge overnight with Level 2.

Does EV charging increase electric bill significantly?

For 12,000 miles/year at average rates, expect $40-80/month increase. Many utilities offer EV rates with cheaper overnight charging to reduce costs further.

Example Calculations

112,000 Miles/Year, 80% Home Charging

Inputs

Annual Miles12,000

EV Efficiency3.5 mi/kWh

Home Rate$0.14/kWh

Public Rate$0.35/kWh

Home Charging80%

Comparable MPG30

Gas Price$3.50/gal

Result

Annual Savings vs Gas$776

EV Cost/Year$624

Gas Cost/Year$1,400

Cost Per Mile$0.052

Monthly Home Cost$32

215,000 Miles/Year, 100% Home Charging

Inputs

Annual Miles15,000

EV Efficiency4.0 mi/kWh

Home Rate$0.12/kWh

Public Rate$0.35/kWh

Home Charging100%

Comparable MPG28

Gas Price$3.80/gal

Result

Annual Savings vs Gas$1,586

EV Cost/Year$450

Gas Cost/Year$2,036

Cost Per Mile$0.030

Monthly Home Cost$38

kWh/Year = 15,000 / 4.0 = 3,750. All home charging: 3,750 x $0.12 = $450. Gas = (15,000 / 28) x $3.80 = $2,036. Savings = $2,036 - $450 = $1,586 per year.

Formulas Used

Annual kWh Consumption

kWh/Year = Annual Miles / Efficiency (mi/kWh)

Total electricity needed per year based on driving distance and vehicle efficiency.

Where:

Annual Miles= Total miles driven per year

Efficiency= Vehicle efficiency in miles per kWh

Annual EV Charging Cost

EV Cost = (Home kWh x Home Rate) + (Public kWh x Public Rate)

Total annual charging cost split between home and public charging.

Where:

Home kWh= kWh/Year x Home Charging Percentage

Home Rate= Cost per kWh at home (e.g., $0.14)

Public kWh= kWh/Year x (1 - Home Charging Percentage)

Public Rate= Cost per kWh at public chargers (e.g., $0.35)

Annual Savings vs Gasoline

Savings = (Annual Miles / MPG x Gas Price) - EV Charging Cost

Annual fuel cost savings compared to an equivalent gasoline vehicle.

Where:

MPG= Comparable gas car fuel economy

Gas Price= Price per gallon of gasoline

EV Charging Cost Calculator

EV Details

Charging Costs

Gas Comparison

Home vs Public Charging

Cost Breakdown

Frequently Asked Questions

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

Home vs public charging cost?

How does EV compare to gas cost per mile?

What is EV efficiency (mi/kWh)?

How long to charge at home?

Does EV charging increase electric bill significantly?

Example Calculations

112,000 Miles/Year, 80% Home Charging

215,000 Miles/Year, 100% Home Charging

Formulas Used

Annual kWh Consumption

Annual EV Charging Cost

Annual Savings vs Gasoline

Related Resources

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Car Lease

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EV Charging Cost Calculator

EV Details

Charging Costs

Gas Comparison

Home vs Public Charging

Cost Breakdown

Frequently Asked Questions

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

Home vs public charging cost?

How does EV compare to gas cost per mile?

What is EV efficiency (mi/kWh)?

How long to charge at home?

Does EV charging increase electric bill significantly?

Example Calculations

112,000 Miles/Year, 80% Home Charging

215,000 Miles/Year, 100% Home Charging

Formulas Used

Annual kWh Consumption

Annual EV Charging Cost

Annual Savings vs Gasoline

Related Resources

Related Calculators

EV Savings

Car Lease

More Auto Calculators