Field guide · Est. 2026

Road Trip Budget Calculator

Most road trip budgets go wrong before the first tank of gas — not because the trip is expensive, but because the number was a guess. This works it out the honest way: from the few costs that are actually predictable. Put in your real numbers and watch the estimate build. It’s a starting figure, not a quote — but a starting figure beats a vague dread about money every time.

MileHorizon · Budget worksheet

Work out what the drive will cost.

miles

Round trip, door to door. Not sure? Map it in Google Maps first.

mpg
$/gal
nights
people
Travel style

Comfortable assumes about $120/night to sleep, $55 a day per person for food, $30 a day for what you do.

The estimate
  • Fuel$0
  • Sleeping$0
  • Food$0
  • Doing things$0
  • Buffer (12%, for what you can’t foresee)$0
What to budget $0
$0 a person $0 a day

Rounded, and honestly rough. It’s the shape of the trip, not a receipt — how we work these numbers out.

An estimate is only the start. If the total comes out higher than you'd like, our guide to building a road trip budget covers which levers actually move it, how to travel for cheap covers the timing and booking side, and how to save money for a trip covers putting the money aside before you go.

© 2026 MileHorizon. Written for people who plan the drive, not just the destination.