AutoLogicTools
Graphite sedan with a glowing fuel system and efficiency path

Fuel & efficiency

MPG & Fuel CostTurn mileage into money.

Forecast fuel used, cost per mile, and real savings for a commute, a road trip, or two vehicles side by side.

Cost per mileFuel usedVehicle comparison
Live fuel calculator

Fuel details

Adjust distance, MPG, fuel price, and frequency to estimate driving cost.

Estimated Fuel Cost

$18.00

Estimated fuel cost one trip based on the current inputs.

Gallons Used

4 gal

Total Miles

100

Cost Per Mile

$0.18

Comparison Savings

$5.14

Fuel Cost Comparison

Current MPG vs. compare MPG

One trip

Current MPG

25.0

$18.00

Compare MPG

35.0

$12.86

Estimated savings

$5.14

The comparison MPG is estimated to cost less for the selected driving period.

Quick fuel cost scenarios

100 miles

$18.00

500 miles

$90.00

1,000 miles

$180

12,000 miles

$2,160

How this fuel cost calculator works

This calculator estimates fuel cost by dividing miles driven by MPG to estimate gallons used, then multiplying gallons by the fuel price. You can use it for road trips, commuting, delivery driving, or comparing two vehicles with different fuel economy ratings.

MPG can change your real ownership cost

A cheaper vehicle is not always cheaper to own. A car with better fuel economy may save money over time, especially for commuters, rideshare drivers, delivery drivers, or anyone driving long distances.

Frequently asked questions

How does the MPG and fuel cost calculator work?

The MPG & Fuel Cost Calculator divides miles driven by fuel economy to estimate gallons used, then multiplies gallons by fuel price to estimate total fuel cost and cost per mile.

Can I compare two vehicles with this calculator?

Yes. Use the comparison fields to estimate how much fuel cost changes between vehicles with different MPG ratings over the same driving distance.

Why does real-world MPG differ from the estimate?

Actual MPG can change with traffic, speed, terrain, tire pressure, maintenance condition, weather, cargo, fuel type, and driving habits.

Is this useful for road trips?

Yes. Enter the trip distance, expected MPG, and fuel price to estimate gallons needed and fuel cost before you leave.

AutoLogicTools provides estimates for general planning. Actual fuel cost may vary based on driving habits, traffic, terrain, weather, fuel type, vehicle condition, tire pressure, and local gas prices.