Total Trip Gas Cost$45.63
Cost per Passenger$45.63
Fuel Needed12.5 Gallons
Calculate trip fuel cost, gas expenses per passenger, fuel volume required, and vehicle fuel economy (MPG or L/100km) for road trips and commutes.
Calculates total fuel cost, gallons/liters needed, and fuel expense per mile.
Divide total gasoline cost equally among road trip passengers with one click.
Supports Miles, Gallons, $/gal (US) as well as Kilometers, Liters, $/L (Metric).
One-click toggle to double distance and budget for return journeys.
Fuel Needed = Distance / Vehicle Fuel Economy (e.g. 600 miles / 30 MPG = 20 gallons).
Total Fuel Cost = Fuel Needed × Price Per Unit (e.g. 20 gallons × $3.50/gal = $70.00).
Cost Per Person = Total Cost / Passenger Count. All calculations execute instantly in client JavaScript.
Calculate total gas cost ($140) for an 800-mile road trip and split it evenly among 4 friends ($35 each).
Estimate monthly gasoline expenditure for a 35-mile daily work commute.
Evaluate whether a shorter scenic route with lower speeds saves fuel versus high-speed interstate highway driving.
Calculate fuel cost per mile driven to track vehicle operating expenses.
Divide total trip distance by your car's MPG to get total gallons needed, then multiply by the price of gas per gallon.
Yes. Softnag allows you to toggle between Imperial (Miles, MPG, $/gal) and Metric (KM, L/100km, $/L) with a single click.
Divide 235.215 by the US MPG figure (e.g., 235.215 / 30 MPG = 7.84 L/100km).
No. All calculations run strictly inside your local browser memory.
Yes. Check the "Round Trip" option to automatically double the distance and fuel cost.
Total Cost = (Trip Distance / Vehicle MPG) * Price per Gallon.