Fuel Cost Calculator

Updated for 2026

Quick Answer

Estimate the exact fuel cost for your next road trip or daily commute. Toggle between miles/km and MPG/L per 100km. Use typical values to get quick results.

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Fuel Cost Calculator

Last updated: March 26, 2026

Planning a weekend road trip, a cross-country move, or just trying to budget your daily commute? Our Fuel Cost Calculator gives you a precise estimate of how much gas money you'll need.

The Fuel Cost Formula

To calculate the cost of a trip, you need three pieces of information: the total distance of the trip, the fuel efficiency of your vehicle (MPG), and the current price of gas.

  1. Calculate Gallons Needed: Gallons=DistanceMPG\text{Gallons} = \frac{\text{Distance}}{\text{MPG}}
  2. Calculate Total Cost: Cost=Gallons×Gas Price\text{Cost} = \text{Gallons} \times \text{Gas Price}

Maximizing Fuel Efficiency

If you're looking to lower your road trip budget, consider these tips to improve your real-world MPG:

Check Your Tire Pressure

Under-inflated tires increase rolling resistance, which forces your engine to work harder and burn more fuel. Keep them inflated to the manufacturer's recommendation.

Limit Idling

Idling gets zero miles per gallon. If you're parked and waiting for more than 60 seconds, it's generally more fuel-efficient to turn the engine off.

Smooth Driving

Aggressive acceleration and hard braking can lower your gas mileage by 15% to 30% at highway speeds. Use cruise control when appropriate to maintain a steady speed.