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Porto to Madrid by car: fuel cost, tolls and vignettes 2026

Portugal→ Spain

About 560 km through 2 countries. At today's prices the fuel for one way costs about €75 with a petrol car or €67 with a diesel.

Distance560 kmapprox., one way

Petrol 95€757 l/100 km

Diesel€676 l/100 km

Round trip€151fuel only

Where to fill up: petrol is cheapest in Spain (€1.785/l). Portugal is the most expensive on this route (€2.165/l) – a 50-litre tank there costs about €18.98 more. Fill up before you cross into Portugal and buy only what you need there. Motorway service stations are usually the most expensive – leaving the motorway for a few minutes often saves 10–20 cents per litre.

Fuel cost by country

FuelConsumption l/100 kmDistance km

Country	km	€/l	Litres	Cost
Portugal	200	2.165	14.0	€30.30
Spain	360	1.785	25.2	€44.98
Total	560		39.2	€75.29

Assumes you refuel in each country in proportion to the distance driven there. Station averages from our daily data for Portugal, Spain.

Vignettes and tolls on this route

Portugal: Distance-based motorway tolls, paid at toll booths or electronically. How it works →
Spain: Distance-based motorway tolls, paid at toll booths or electronically. How it works →

Cars up to 3.5 t. Buy vignettes only from the official sellers – unofficial sites add large fees.

Questions

How much does fuel cost from Porto to Madrid?

For about 560 km a petrol car using 7 l/100 km needs about 39 litres, costing about €75; a diesel car using 6 l/100 km about €67. One way, at current national average prices.

Where is fuel cheapest between Porto and Madrid?

Petrol is cheapest in Spain (€1.785/l) and diesel in Spain (€1.889/l); the most expensive is Portugal (€2.165/l).

Do I need a vignette from Porto to Madrid?

No vignette is needed on this route; some countries charge distance-based tolls.

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Distances are approximate and follow the usual motorway route; your navigation may differ. Prices are national averages and change daily.