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RV Trip-Fuel Calculator

Estimate fuel for your next route, including extra driving and a cash contingency. Use your loaded or towing fuel economy rather than a best-case vehicle rating.

USD · Miles · US gallonsExample inputs, ready to edit. These are not averages or quotes.

Tell us about the driveStart with your route and your loaded MPG
Route and fuel

Leave this unticked if your route already includes the journey home.

+Leave a little roomDetours, local driving and extra cash
Extra mileage and cash

Extra driving adds miles. The cash contingency is separate and added after estimating fuel cost.

Your plan, at a glance

What will the drive cost?

Fuel use changes with terrain, weather and driving. Campsites, tolls, maintenance and generator fuel are not included.

Compare a different planSave and revisit your scenarios

Save up to eight named scenarios on this browser. They stay here, without syncing to other devices.

How the estimate works

Driving distance = route miles × 2 if round trip is ticked × (1 + extra driving percentage). Fuel cost = driving distance ÷ MPG × price per US gallon. The cash contingency is added after calculating fuel cost.

Build the rest of the itinerary with RV trip planning and the free first-trip checklist. For monthly expenses, use the living-cost planner.