Fuel Cost Calculator

Trip fuel cost from distance and MPG, or actual trip from odometer and fuel used.

Round trip

Result

Fill in the fields above, then press Calculate.

For a planned trip: enter the distance, your vehicle MPG, and the fuel price per gallon; check round-trip if applicable. For an actual trip: enter the odometer readings at start and end, the fuel used, and the price paid. Click Calculate to see total fuel cost and cost per mile.

Examples

Planned Road Trip

A 350-mile trip in a car getting 28 MPG with gas at $3.50/gallon: 350 / 28 = 12.5 gallons × $3.50 = $43.75 total, or $0.125 per mile.

Actual Trip Calculation

Odometer start: 45,200. Odometer end: 45,520. Distance = 320 miles. Fuel used: 11.2 gallons. Actual MPG = 28.6. At $3.60/gallon, cost = $40.32.

Frequently Asked Questions

How do I find my vehicle MPG?
Check fueleconomy.gov for EPA estimates, or calculate it yourself: fill your tank, drive, refill, and divide miles driven by gallons used.
Does this account for round trips?
Yes. Check the round-trip option to automatically double the distance. The calculator will show the total fuel and cost for both legs of the journey.
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Distance Calculator

Quick Tips

Double check your inputs. Ensure units match (e.g., inches vs cm).

Did you know?
Calculators are estimates. Consult professionals for critical decisions.