EV vs Gas Cost Calculator - Compare Charging Costs vs Gas Prices 2026

Live API Data U.S. Government Sources

EV Charging Cost vs Gas Calculator

Calculate and compare electric vehicle charging costs vs gasoline prices using live API data from U.S. Energy Information Administration (EIA), Alternative Fuels Data Center, and NHTSA.

Live API Status

EIA Gas Prices

EIA Electricity Rates

AFDC EV Data

NHTSA Vehicles

Location & Pricing

Electricity Rates

EIA API

Residential Rate ($/kWh)

U.S. EIA Average: $0.15/kWh

Charging EfficiencyLevel 1 (120V) - 85% efficientLevel 2 (240V) - 90% efficientPublic Charger - 88% efficientLevel 2 Premium - 95% efficient

Average rates by state (EIA data):

Gasoline Prices

EIA API

Gas Price ($/gallon)

U.S. EIA Weekly: $3.75/gallon

Fuel GradeRegular (87 octane)Mid-grade (89 octane) +20%Premium (91+ octane) +40%

Current averages (EIA API):

Vehicle Selection

Electric Vehicle

AFDC API

Custom EV Efficiency (miles/kWh)

Battery Capacity (kWh, optional)

Gas Vehicle

NHTSA API

Custom MPG (miles per gallon)

Fuel Tank (gallons, optional)

Usage Profile

Monthly Mileage

Miles per month

5001,2003,000

Driving Mix

Highway Driving %

0%50%100%

Highway driving typically reduces EV efficiency by 10-20%

Analysis Period

Years to analyze1 Year3 Years5 Years7 Years10 Years

Includes fuel price inflation projections

Cost Comparison Results

Data Sources

Using live data from U.S. government APIs

Last updated: Loading...

Environmental Impact

Live API Data Sources

EIA Gas Prices

U.S. Energy Information Administration weekly gasoline prices

eia.gov/opendata

EIA Electricity

Average electricity rates by state and sector

eia.gov/electricity

AFDC EV Data

Alternative Fuels Data Center - EV efficiency, charging

afdc.energy.gov

NHTSA Vehicles

Vehicle specifications and fuel economy data

nhtsa.gov

Pro Tips & Assumptions

Money-Saving Tips

• Charge during off-peak hours
• Check for EV-specific utility rates
• Consider solar panels
• EVs have 40% lower maintenance
• Look for free public charging

Calculation Assumptions

• Gas price inflation: 3% (EIA)
• Electricity inflation: 2.5% (EIA)
• EV maintenance: $0.06/mi, Gas: $0.10/mi
• CO₂: Gas 8.887 kg/gal, Grid 0.429 kg/kWh

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This calculator uses live U.S. government API data. Actual costs may vary.

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