Free online tool

Fuel cost calculator

Estimate the fuel a trip will use and what it will cost, in either miles per gallon or litres per 100 kilometres, from distance and the price you pay.

EV-T08

Estimate trip fuel cost.

Use either miles per gallon or litres per 100 kilometres; no location or live price data leaves your browser.

COMMON WAYS TO ASK

Estimate gas cost for a trip
Calculate fuel needed by MPG
Split road-trip fuel cost

QUICK ANSWER

What this calculator tells you.

Combine trip distance, vehicle efficiency, and fuel price to estimate fuel volume and cost. Actual use changes with traffic, weather, load, tires, and driving speed.

WORKED EXAMPLE

A 300-mile trip at 30 MPG

INPUT300 mi · 30 MPG · $3.50/gal

RESULT10 gallons · about $35

CHECK THE EDGE CASES

Questions people ask next.

Should I use highway or combined MPG?

Use the efficiency closest to the trip. A mixed route is better represented by a recent combined average than by the best advertised highway figure.

Why can actual fuel cost differ?

Idling, speed, elevation, temperature, cargo, tire pressure, detours, and changing pump prices all affect the real total.