Tankful – fuel cost for every route

Know what a drive will cost before you set off. Tankful adds the estimated fuel cost right next to the time and distance of every driving route in Google Maps – no copying numbers into a calculator.

WHAT YOU GET
• The cost of every route option in the Google Maps route list and in the route details.
• A compact panel on the map that compares all route options side by side.
• Round-trip cost and cost per person, e.g. "4 × €12" when four people share the ride.
• Settings for one route only – take a friend's car for a single trip without changing your defaults.
• One click to copy a trip summary, or save the trip to your history.

LIVE FUEL PRICES
• EU countries: national averages from the European Commission's Weekly Oil Bulletin; in Poland adjusted when Orlen wholesale prices or fuel taxes change.
• UK: the UK government's weekly road fuel prices.
• US: the U.S. Energy Information Administration's weekly gasoline and diesel prices for the state or its region (e.g. California, Texas, Gulf Coast), in miles, gallons and mpg.
• Trips through several countries: the price is weighted by the kilometres driven in each country.
• Petrol 95 and 98, diesel, premium diesel and LPG – or set your own price.
• Electric cars: a range from charging at home to fast chargers.
• Prices in EUR, PLN, CZK, HUF, RON, SEK, DKK, GBP, CHF, NOK, ISK or USD, converted at National Bank of Poland rates.

TRIP HISTORY
• Save trips and see them grouped by month with total distance and cost.
• Export to CSV for your spreadsheet or accounting.
• Polish mileage allowance ("kilometrówka") at the official per-km rates, for business-trip claims in Poland.

PRIVACY
No account, no ads, no analytics, no servers. Your settings and trip history stay in your browser. To find the country for local prices, only the route's start and destination – rounded to about 1 km – are sent to OpenStreetMap, and you can turn that off. Full policy: https://koszt-paliwa.pl/privacy.html

Works on Google Maps in all EU countries, the UK, the US, Switzerland, Norway and Iceland – with automatic prices in the EU, the UK and the US, and your own price in Switzerland, Norway and Iceland. Available in 16 European languages.

Online calculator without the extension: https://koszt-paliwa.pl/en

Costs are estimates based on average fuel prices and the consumption you enter; actual prices at the pump vary.

Tankful is an independent project and is not affiliated with or endorsed by Google. Open source (MIT): https://github.com/Michalskii/tankful