Car Calculators
Tools for the running costs of a car, starting with the fuel cost of a trip.

Fuel Cost Calculator
How much will you spend on fuel for a trip? Enter the distance, your car’s average consumption and the price per litre to see the litres, the total cost, the cost per kilometre and the cost per person.
Open calculator →Fuel Consumption Calculator
How many litres does your car use per 100 kilometres, and how far does it go on one litre? Enter the kilometres driven and the litres you filled to measure real consumption, the cost per kilometre and the range on a full tank.
Open calculator →EV Charging Cost
What charging an electric car costs at home and at a public post, and the price per kWh you really pay.
Open calculator →Car Leasing Calculator (Portugal)
How much is the monthly rent on a car leasing? This calculator estimates the rent from the vehicle value, the initial down payment, the nominal annual rate (TAN), the term and the residual value (the buy-out at the end). Because leasing is a rental with an option to buy, it shows two totals: what you pay if you keep the car at the end and what you pay if you hand it back. The figures are shown without VAT.
Open calculator →Speeding Fine Calculator (Portugal)
Flashed by a radar in Portugal and wondering what it will cost? Enter your speed, the local limit, whether it happened inside or outside a locality and the vehicle type: the calculator applies the article 27.º table of the Código da Estrada and shows the fine, the offence classification, the licence points you lose and the driving ban you risk.
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About car calculators
Owning and using a car has several costs: the fuel for each trip, the annual tax, financing the purchase and maintenance. These calculators help you estimate those costs from values you enter, starting with the fuel cost of a trip (distance, consumption and price). They link to the IUC and car-loan calculators so you can see the full picture. They are educational estimates that do not replace professional advice. Each calculator explains the sum it does and links to the article that goes deeper.
Learn
- How to calculate the fuel cost of a trip →
- How to work out your car’s real fuel consumption →
- How much it costs to charge an electric car in Portugal →
- How car leasing works →
- Traffic fines and licence points in Portugal →
The calculators provide educational estimates and do not constitute financial advice.