Gas Trip Cost Calculator
Calculate fuel used, total gas cost, and cost per person.
Inputs
Results
Use this Gas Cost Calculator to estimate the fuel needed for a trip, total fuel cost, and cost per person when sharing the expense.
Gas Cost Calculation Method
When fuel economy is entered in miles per US gallon (MPG):
Fuel used (gallons) = distance in miles ÷ MPG
When fuel economy is entered in litres per 100 kilometres:
Fuel used (litres) = distance in km × L/100km ÷ 100
Then calculate:
Total fuel cost = fuel used × fuel price
When several people share the cost:
Cost per person = total fuel cost ÷ number of people
Example
Suppose a trip is 300 miles, the vehicle averages 30 MPG, fuel costs $3.50 per US gallon, and two people are splitting the cost.
Fuel used = 300 ÷ 30 = 10 gallons
Total cost = 10 × $3.50 = $35.00
Cost per person = $35.00 ÷ 2 = $17.50
The estimated trip fuel cost is $35.00, or $17.50 per person.
Important Notes
- Enter the full driving distance. Double a one-way distance when calculating a round trip.
- Use realistic fuel economy for your vehicle rather than relying only on an ideal rating.
- Actual fuel use can vary with speed, traffic, idling, weather, terrain, vehicle load, tire pressure, and driving style.
- Fuel prices vary by location, station, fuel grade, and date.
- The result includes fuel cost only. It does not include tolls, parking, maintenance, depreciation, insurance, or other travel expenses.