Trip fuel cost calculator

Estimate fuel used and trip cost from the distance, fuel economy and price you enter.

Your inputs stay in your browser.

Method and assumptions

Method version 1.0.0 · Updated October 2, 2026

Estimate trip cost

Formula: Fuel volume used × price per selected volume unit.

Estimate based on your inputs. You provide the fuel price; the result uses the same currency and excludes tolls and other costs.

distance: Trip distance
distanceUnit: Distance unit
consumption: Vehicle fuel economy
consumptionUnit: Fuel economy unit
fuelPrice: Fuel price
fuelPriceUnit: Price per volume

Fuel price is entered by the user and the result stays in that currency. Conversions use 1 mi = 1.609344 km, 1 US gallon = 3.785411784 L, and 1 imperial gallon = 4.54609 L. The estimate does not account for traffic, terrain or changing fuel economy.

Calculate with code

These short examples use the same inputs and core calculation as this tool. Adapt validation and formatting to your application.

JavaScript

const km = 240, litersPer100Km = 6.5, pricePerLiter = 1.8;
console.log(km * litersPer100Km / 100 * pricePerLiter); // 28.08

TypeScript

const km = 240, litersPer100Km = 6.5, pricePerLiter = 1.8;
const cost: number = km * litersPer100Km / 100 * pricePerLiter;
console.log(cost); // 28.08

Python

km, consumption, price = 240, 6.5, 1.8
print(km * consumption / 100 * price)  # 28.08

Java

double cost = 240 * 6.5 / 100 * 1.8;
System.out.println(cost); // 28.08

decimal cost = 240m * 6.5m / 100 * 1.8m;
Console.WriteLine(cost); // 28.08