Road Trip Cost Calculator

Fuel Cost first converts Total Distance into Gallons Needed by dividing by Fuel Efficiency (miles per gallon), then multiplies by Gas Price per gallon -- this mirrors exactly how you'd pump gas and pay for it. A more fuel-efficient vehicle needs fewer gallons to cover the same distance, so Fuel Cost falls as Fuel Efficiency rises even though Total Distance and Gas Price stay the same.

Meals are a genuinely per-person expense -- Meals/Day per Person is multiplied by both Travel Days and Passengers, since each traveler eats their own meals. Hotel Cost is calculated per ROOM (Hotel Cost/Night × Hotel Nights), reflecting that a hotel room is typically a shared, fixed cost regardless of whether one or several people are sharing it -- this calculator assumes everyone fits in the rooms you've budgeted for rather than booking separate rooms per traveler.

Yes -- Cost per Person divides the full Total Trip Cost evenly by the number of Passengers, treating fuel, tolls, and hotel costs as shared expenses split equally across everyone, on top of the Meal Cost that's already calculated per person. If your group plans to split costs unevenly (for example, only the driver pays for gas), you'll need to adjust the shared-cost split manually outside this calculator.

Travel Days drives Meal Cost (you eat every day of the trip, including driving days that don't require a hotel stay), while Hotel Nights drives Hotel Cost specifically for nights you need lodging. These can differ -- for example, a one-day trip with no overnight stay would have Travel Days of 1 and Hotel Nights of 0, incurring meal cost but no hotel cost at all.

This calculator covers fuel, hotels, meals, and tolls -- the most predictable, budgetable categories of a road trip. It doesn't account for vehicle maintenance, parking fees, attraction or activity costs, souvenirs, or unexpected repairs, all of which can add meaningfully to a real trip's total cost depending on your itinerary and destination.