Total fuel cost
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Total fuel cost, driving time, and cost per traveler for a road trip — one-way or round trip.
Fuel cost comes from the same math as the MPG-based Fuel Cost calculator, applied to your total trip distance. Driving time is a straight-line estimate from average speed — it doesn't account for traffic, stops, or breaks, so treat it as a floor rather than a real ETA.
total distance = one-way distance × (2 if round trip, else 1) · fuel cost = (total distance ÷ MPG) × price per gallon · driving time = total distance ÷ average speed