Fuel Stop Planner Calculator
Plan Fuel Stops
Calculate how many fuel stops you need for a trip
Calculate Vehicle Range
How far can you drive on your current fuel
Formula
Range = Tank Size x MPG; Usable Range = (Current Level - Refuel Level) x Tank x MPG; Stops = ceil((Trip - First Leg Range) / Refill Range).
Frequently Asked Questions
When should I stop for gas on a road trip?
Refuel when your tank reaches 1/4 full. This gives you a safety buffer in case gas stations are far apart or closed. In remote areas (desert, mountain passes), fill up whenever you see a station regardless of fuel level.
How do I calculate my car's range?
Range = Tank Size (gallons) x MPG. For example, a 15-gallon tank with 28 MPG gives a range of 420 miles on a full tank. Use 85% of this for a safe estimate that accounts for varying driving conditions.
Does highway driving use more or less fuel?
Most vehicles are most fuel-efficient at 45-65 mph. Highway driving at moderate speeds typically gives better MPG than city driving. However, driving above 65 mph significantly increases fuel consumption due to air resistance - every 5 mph over 50 is like paying an extra $0.20/gallon.
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