Road trip math

How to Calculate Road Trip Cost

A complete road trip budget has four buckets: fuel, lodging, food and incidentals (tolls, parking, attractions). Here's how to estimate each accurately before you leave.

Updated for 2026
US units
US avg fuel prices
EPA-style MPG
Transparent assumptions

How to read this guide

Examples: Numbers shown in this guide are illustrative estimates, not personalized quotes.
Use the calculators: For exact figures use the linked calculators with your real MPG, miles and local fuel price.
Updated periodically: Content is reviewed against recent EPA, DOE, AAA and EIA references.

Step 1 — Fuel

Round-trip miles ÷ MPG × gas price. Add 10% buffer for AC, hills, headwinds. Use the Fuel Cost Calculator for an instant estimate.

Step 2 — Lodging

$110–$180/night for mid-tier hotels in most US states. Multiply by nights. Beach destinations in summer can double this.

Step 3 — Food

$30–$50/day per adult, $20/day per child for a mix of fast food, grocery breakfasts and one sit-down meal.

Step 4 — Incidentals

Tolls (~$0.05–$0.15/mile on tolled interstates), parking ($15–$40/day in big cities), attractions, souvenirs. Budget 10–20% of total trip cost.

Trip length	Fuel (32 MPG)	Lodging	Food (2 adults)	Total estimate
2-day, 400 mi	$43	$140	$120	~$330
4-day, 1,000 mi	$108	$420	$280	~$880
7-day, 2,000 mi	$216	$840	$490	~$1,650

At $3.45/gal, $140/night lodging, $35/person/day food.

Popular routes

Miami → Orlando

LA → Las Vegas

Dallas → Houston

Browse all road trip routes →

Frequently asked questions

What's the biggest road trip cost?

For trips over 3 nights, lodging usually overtakes fuel. For short trips, fuel dominates.

How do I split costs with friends?

Use our gas cost split calculator — it divides fuel evenly or by passenger count.

What's a typical 7-day road trip budget?

About $1,500–$2,000 for two adults driving 2,000 miles with mid-tier lodging and meals.