Compare Fuel Costs Between Cars
See how much a more efficient vehicle would save on the same trips.
miles per gallon (mpg)
💡 Amounts are shown in your fuel-price currency — the number is currency-agnostic, so it works for $, £, €, or any other. Real-world consumption varies with speed, terrain, load, and weather, so treat this as a close estimate.
Compare Cars tips
Run the same distance with two different mpg figures to see the cost gap.
The jump from 20 to 30 mpg saves more fuel than 40 to 50 mpg — efficiency gains shrink at the top.
Annualize the difference (× your yearly mileage) to judge whether a swap is worth it.
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Estimate Road Trip Fuel Cost
Budget the fuel for a long drive from distance, mp
Split Gas Money Between Passengers
Fairly divide fuel cost among everyone in the car
Calculate Your Commute Fuel Cost
Find out what driving to work really costs per day
Fuel Cost in Litres & Kilometres
Calculate cost using L/100km or km/L and price per