Petrol vs diesel vs hybrid vs electric: cost calculator
Total cost of ownership with your mileage and today’s prices. Shows when a pricier car pays back.
What a car really costs, which option pays off and what changed today in the price of driving. Formulas in plain sight and official data.
What changed today, from official data. See all →
Total cost, payback and taxes before you sign.
Total cost of ownership with your mileage and today’s prices. Shows when a pricier car pays back.
Which one is cheaper for your mileage, and from how many km a year diesel pays off.
Total cost of an electric car against a hybrid with your charging situation.
When a plug-in pays off: it depends on how often you charge it.
Leasing against buying with cash or a loan: total cost, monthly and per km.
Official CO₂ brackets and rates from Law 38/1992.
Today’s prices and what every kilometre costs you.
Official averages by province, updated every night, plus the cheapest hours to charge.
Fuel or electricity cost of a trip, split between passengers, with tolls.
Cost per charge, per 100 km and per month, with charging losses.
Sizes, equivalents, speedometer error and speed per gear.
Power, torque, displacement, compression and conversions.
hp, kW and PS/CV; N·m and lb-ft; power from torque and rpm.
Displacement from bore and stroke; compression ratio and chamber volume.
Speed, fuel consumption and kWh/100 km ↔ mi/kWh.
Every calculation cites its standard or technical reference and states its limits.
Every formula is verified against hand-calculated values before it goes live.
Fuel and electricity prices pulled from public sources daily.