Compare calculators

Both calculators run independently — change the inputs on either side to compare results.

Electric Vehicle Cost Comparison Calculator

Compare fuel costs between an electric vehicle and a gas-powered car over your ownership period. Use this when deciding whether switching to an EV will save you money given your local electricity and gas prices.

Annual Miles Driven (miles)

Gas Price per Gallon ($)

Gas Vehicle MPG (mpg)

Electricity Rate ($/kWh)

EV Efficiency

Ownership Period (years)

Fill in the required fields to see your result.

Climate

Renewable Energy Investment ROI Calculator

Estimate the 25-year return on investment for solar, wind, or geothermal installations. Use it when comparing system sizes, incentive packages, or electricity rate scenarios before committing to a renewable energy project.

System Capacity (kW)

Total Installation Cost ($)

Tax Credits & Rebates ($)

Current Electricity Rate ($/kWh)

Annual Rate Increase (%)

Fill in the required fields to see your result.

Key differences

	Electric Vehicle Cost Comparison Calculator	Renewable Energy Investment ROI Calculator
Category	Climate	Climate
Inputs required	6	5
Result	EV Savings vs Gas ($)	25-Year ROI Percentage (%)
What it does	Compare fuel costs between an electric vehicle and a gas-powered car over your ownership period. Use this when deciding whether switching to an EV will save you money given your local electricity and gas prices.	Estimate the 25-year return on investment for solar, wind, or geothermal installations. Use it when comparing system sizes, incentive packages, or electricity rate scenarios before committing to a renewable energy project.