Fuel & Trip Cost Calculator

Estimate the fuel cost of any trip. Enter the distance, your vehicle's fuel economy, and fuel price to see total cost — split it between passengers and add a return leg. Free and local.

The Fuel & Trip Cost Calculator estimates what a journey costs in fuel from the distance, your vehicle's economy, and the fuel price — with round-trip and per-person splitting. It supports MPG, km/L, and L/100km so it works wherever you drive.

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Category
Calculators & Converters
Includes
5 features
Access
Free · No sign-up
Privacy
Runs in your browser
Fuel & Trip Cost Calculator

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How to use

How to use Fuel & Trip Cost Calculator

  1. 01

    Enter the distance

    Add the trip distance in miles or kilometers.

  2. 02

    Add fuel economy

    Enter your vehicle's MPG, km/L, or L/100km.

  3. 03

    Set the fuel price

    Type the current price per gallon or liter.

  4. 04

    Split and total

    Toggle round-trip and split the cost between passengers.

Use cases

Common use cases

  • A road-tripper budgets fuel before setting off.
  • Carpoolers split fuel costs fairly per person.
  • A commuter works out a monthly driving cost.
  • A driver compares two routes by fuel expense.
Overview

Estimate the fuel cost of any trip

Enter the distance, your vehicle's fuel economy, and the current fuel price, and get the total cost for the journey — one way or round trip. It's the quick check before a road trip, a commute comparison, or splitting fuel fairly between passengers.

Compare routes, cars, and carpooling

Change the economy figure to compare two vehicles, or the distance to weigh a shorter toll route against a longer free one. The maths is distance ÷ economy × price, but running it for real trips — and dividing by the number of people sharing — is where the calculator saves you the effort.

Features
01
Supports MPG, km/L, and L/100km economy
02
Miles or kilometers distance
03
Round-trip toggle and cost-per-person split
04
Fuel needed + total cost breakdown
05
No signup, no data stored
FAQ

Frequently asked questions

How do I calculate the fuel cost of a trip?+

Divide the trip distance by your vehicle's fuel economy to get the fuel used, then multiply by the fuel price. For example, 300 miles ÷ 30 MPG = 10 gallons; at $3.50/gallon that's $35. This tool handles MPG, km/L, and L/100km automatically.

What's the difference between MPG, km/L, and L/100km?+

MPG (miles per gallon) and km/L (kilometers per litre) measure distance per unit of fuel — higher is better. L/100km measures fuel per 100 km — lower is better. Pick the one on your dashboard and enter distance in the matching unit.

Can I split the cost between passengers?+

Yes. Enter the number of people and the calculator divides the total fuel cost evenly, so everyone knows their share for a carpool or road trip.

Is my trip data saved?+

No. All calculations happen locally in your browser and nothing is uploaded or stored.