Fuel Cost Calculator & Gas Log

Find out exactly what a drive costs.

Enter your distance, your car's fuel use and the price at the pump. That's it — the total appears instantly, along with how much fuel you'll need and the cost per mile.

BUILT FOR HOW YOU ACTUALLY MEASURE
Most fuel calculators assume US miles per gallon. This one doesn't. Switch freely between L/100km, km/L, MPG (US) and MPG (imperial) — and yes, we know a UK gallon isn't a US gallon, so imperial MPG is calculated correctly.

WORKS ANYWHERE
Miles or kilometres. Litres or gallons. Your own currency. The app picks sensible defaults for your country the moment you open it.

SHARING THE DRIVE
Split the cost between passengers to see what each person owes. Toggle round trip to double the distance without doing the maths.

SAVE YOUR CARS
Store each vehicle's fuel consumption once and stop retyping it.

NO ACCOUNT. NO INTERNET NEEDED. NO TRACKING.
Everything is calculated on your phone. Nothing is uploaded anywhere.

ANY FUEL, ANY VEHICLE
Gasoline, diesel or E85 — type in the pump price and your car's fuel economy, and the math is the same. It works for a motorcycle, a pickup or an RV. Outside the US it is the same app: petrol by the liter, kilometers, and your own currency.

ROAD TRIP, COMMUTE OR CARPOOL
Use it as a trip cost estimator before a long drive, or to see what the commute costs each week. Split a carpool between riders and everyone sees their share. There is a fuel economy converter built in, between L/100km, km/L, MPG (US) and MPG (imperial), so a figure from anywhere makes sense here. Nothing about your travel leaves the phone.

Gas, diesel, hybrid or electric: switch to Electric to work out an electric car trip cost in kWh, or compare an electric car with a gas car for the same journey. Plan multi-stop trips leg by leg (Pro), log your fill-ups to see your real fuel use and what you spent in the last 30 days, share the cost as a clean picture, and back everything up for free to move to a new phone. No account, no ads, works offline.

DRIVES (PRO)
Record a real drive and see its route on a map with what it cost. Start one yourself, or turn on automatic detection. Routes are stored only on your phone and are never uploaded. Delete one drive, or all of them, whenever you like.