Fuel Cost Calculator
A fuel cost calculator estimates total trip gas expenses, vehicle fuel consumption, cost per mile, and shared travel costs for road trips and commutes. By dividing total trip distance by vehicle fuel economy (MPG or L/100km) and multiplying by fuel price, it determines exact driving expenditure per passenger.
By Maya Chen (Personal Finance Editor) · Reviewed by Daniel OkoroUpdated · Published
Units:
Vehicle:
Distance:
Distance (miles)
300mi
Fuel Economy (MPG)
30MPG
Fuel Price (per Gallon)
$
3.50
Passengers (Split)
1people
TOTAL FUEL COST
One-way (300 mi)
COST PER PASSENGER
Split among 1 traveler
FUEL NEEDED
COST PER MILE
How Does the Fuel Cost Calculator Work?
- Enter your one-way or round-trip distance in miles or kilometers.
- Enter your car fuel efficiency (or pick a vehicle preset like Sedan 32 MPG or SUV 22 MPG).
- Enter current gas price per gallon or liter, and number of passengers splitting the expense.
- Instantly see total fuel needed, total cost, cost per passenger, and cost per mile.
What Is the Fuel Cost Formula?
Fuel Needed = Distance / MPG | Total Cost = Fuel Needed × Price | Split = Total Cost / Passengers
Divide travel distance by fuel economy to find required fuel quantity, then multiply by price per unit volume.
Variables
Distance:One-way or round-trip mileage or kilometers
MPG:Vehicle fuel economy in miles per gallon or L/100km
Price:Current local fuel price per gallon or liter
Passengers:Total people sharing fuel expenses
How Do You Calculate Fuel Cost Step by Step?
300-mile weekend road trip in a 30 MPG crossover with gas at $3.60/gallon shared by 3 passengersDistance: 300 miles
Fuel Economy: 30 MPG
Gas Price: $3.60/gal
Passengers: 3
Total fuel needed: 300 / 30 = 10.00 gallons
Total gas cost: 10.00 × $3.60 = $36.00
Cost per passenger: $36.00 / 3 = $12.00 per person
Cost per mile: $36.00 / 300 = $0.12 per mile
Final Solution:$36.00 total trip fuel cost ($12.00 per passenger)
Fuel Cost Questions and Answers
To calculate road trip fuel cost, divide your total distance by your car’s average MPG to get total gallons needed, then multiply that number by the local gas price per gallon. For round trips, remember to double the one-way distance.