WiseCalc

Fuel Cost Calculator

Compare illustrative gasoline fuel costs in USD using US miles, US gallons, two MPG values and a fixed whole-year horizon.

mi
0 mi40,000 mi
$
$0$7
years
1 year10 years

Vehicle A

MPG
10 MPG60 MPG
Annual Cost
$1,500
$125.00/month

Vehicle B

MPG
10 MPG60 MPG
Annual Cost
$1,200
$100.00/month
Annual Savings
$300
with Vehicle B
Fuel savings over 5 years
$1,500
Vehicle A Total
$7,500
Vehicle B Total
$6,000

Annual Fuel Cost Comparison

Units: US miles, US gallons and US dollars. No metric or Imperial-gallon conversion is applied. Use gasoline miles per gallon, not MPGe. Defaults are illustrative inputs, not current fuel prices.

Fuel-only model: both vehicles travel the same entered distance each year. Fuel price and fuel economy stay fixed throughout the whole-year comparison. Annual cost is miles divided by US MPG times price per US gallon; monthly cost is annual cost divided by 12. Maintenance, insurance, taxes, depreciation, electric energy and future price changes are excluded.

EPA/DOE: fuel economy and fuel cost assumptions

Gasoline fuel cost scope

Annual gasoline cost is annual US miles divided by US miles per gallon, multiplied by USD per US gallon. Monthly cost is annual cost divided by 12. The two vehicles share entered travel distance and fuel price, which remain constant across the whole-year horizon.

Savings are signed differences in fuel cost only. Equal economy, zero travel or free fuel produces a neutral tie. Maintenance, insurance, taxes, depreciation, electric energy and future prices are excluded. MPG is not energy-equivalent MPGe, and no metric conversion is performed.

Frequently Asked Questions