Fuel Efficiency Calculator — Formula

## How to Compare Fuel Efficiency

Calculate each vehicle's annual fuel cost and find the difference.

### Formula

**Annual Fuel Cost = Annual Miles / MPG x Gas Price**

**Savings = Cost A - Cost B**

Esempio Risolto

12,000 miles/year at $3.50/gal: Vehicle A gets 25 MPG, Vehicle B gets 35 MPG.

  1. Vehicle A cost = 12,000 / 25 x $3.50 = $1,680
  2. Vehicle B cost = 12,000 / 35 x $3.50 = $1,200
  3. Annual savings = $1,680 - $1,200 = $480
  4. 5-year savings = $480 x 5 = $2,400