Fuel Cost Calculator

Last updated: 2026-08-24

Fuel Cost Calculator — Calculate fuel cost for a trip.
Inputs
Result
Enter values and press Calculate

How to use it

  1. Measure the distance of the trayecto (ida) or Enter the ruta según Google Maps/Waze
  2. Check the consumption medium current of the vehículo (L/100km) según ordenador of a bordo or ficha técnica
  3. Obtén the price current of the fuel (gasolina 95, diésel A or gasóleo B agrícola) of your estación usual
  4. Calculate liters required: (distancia_km ÷ 100) × consumption_L_100km
  5. Multiply the liters per the price per liter to Obtain the cost total of the trayecto
  6. Double the result if necesitas cost of ida and vuelta

Common mistakes

  • ⚠️ Use the consumption approved (WLTP) in vez of the consumption current, that can ser a 20-30% higher
  • ⚠️ Not considering that the consumption increases with carga: a furgoneta cargada consume to 2 L/100km más
  • ⚠️ Forget that the gasóleo B (bonificado) is solo to machinery agrícola and of project, not to vehícuthe of carretera
  • ⚠️ Not review the price of the fuel periódicamente: fluctúa según the mercado internacional
  • ⚠️ Calculate solo the cost of fuel without incluir desgaste of neumáticos and maintenance proportional

Worked example

Calculate fuel cost for 500km trip at 7L/100km.

Results: {litros_ud} L of fuel, cost of ida of {coste_eur} €, cost of ida and vuelta of {coste_ida_vuelta_eur} €.

Input guide

FieldTypical range
consumo_l100kmValue between 4 and 25 L/100km.
precio_lValue between 0.8 and 3 €/L.
km_viajeValue between 1 and 5000 km.