The EV vs Gas Fuel Cost Calculator evaluates annual fueling expenses between battery electric vehicles and internal combustion engine automobiles using standard kWh per 100 miles consumption benchmarks.

### Consumption Mathematics & Payback Formulas Vehicle fueling expenses are modeled directly from annual mileage, fuel economy ratings, and prevailing energy prices: - **Gasoline Vehicle Fuel Expense**: $$\text{Annual Gas Cost} = \left( \frac{\text{Annual Miles}}{\text{Gas Vehicle MPG}} \right) \times \text{Gas Price ($/gal)}$$ - **Electric Vehicle Fuel Expense**: $$\text{Annual EV Cost} = \left( \frac{\text{Annual Miles}}{100} \right) \times \text{kWh per 100 Miles} \times \text{Electric Rate ($/kWh)}$$ - **Net Operating Fuel Advantage**: $$\text{Annual Savings} = \text{Annual Gas Cost} - \text{Annual EV Cost}$$ $$\text{5-Year Savings} = \text{Annual Savings} \times 5$$

### Worked Comparison Example Evaluating 13,500 annual commute miles comparing a 28 MPG gasoline sedan (paying $3.65/gallon) against an electric vehicle consuming 30 kWh per 100 miles (paying $0.16/kWh residential electricity): - **Gasoline Fuel Bill**: $(13{,}500 / 28) \times \$3.65 = 482.14 \times 3.65 = \$1{,}759.82\text{ per year}$ - **Electric Charging Bill**: $(13{,}500 / 100) \times 30 \times \$0.16 = 135 \times 30 \times 0.16 = \$648.00\text{ per year}$ - **Annual Energy Savings**: $\$1{,}759.82 - \$648.00 = \$1{,}111.82\text{ saved annually}$ - **Monthly Savings**: $\$1{,}111.82 / 12 = \$92.65\text{ per month}$ - **5-Year Accumulated Savings**: $\$1{,}111.82 \times 5 = \$5{,}559.10$

### Client-Side Execution & Privacy Calculations update dynamically in your web browser. No commute distances, vehicle models, or regional utility figures are recorded or sent to any server.