Le guide ci-dessous n'est pas encore disponible en français et s'affiche en anglais. Le calculateur lui-même est entièrement traduit.
Comment utiliser ce calculateur
- Choose US units (miles, mpg, price per gallon) or metric (km, L/100 km, price per liter).
- Enter the trip distance and your vehicle's fuel economy.
- Enter the current fuel price, and tick round trip if you're coming back.
Formule
Fuel used depends on distance and efficiency; cost is fuel used times price.
US: gallons = miles ÷ mpg
Metric: liters = km × (L/100 km) ÷ 100
Cost = fuel × price
Example
- 300 miles at 28 mpg = 10.71 gallons.
- At $3.50/gal: 10.71 × 3.50 = $37.50.
- Round trip for 2 people: $75.00 total, $37.50 each.
Questions fréquentes
How do I find my car's fuel economy?
Check the official rating (e.g. EPA in the US, WLTP in Europe), your trip computer, or measure it with the gas mileage calculator. Real-world highway economy is often better than city driving.
How do I convert mpg to L/100 km?
L/100 km = 235.215 ÷ mpg (US). For example, 30 mpg ≈ 7.84 L/100 km.
What about electric cars?
Use kWh per 100 km (or per mile) as the efficiency and electricity price per kWh as the price. The math is the same as the metric method.