Open Skies RV

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RV Trip Fuel Cost: How to Estimate It

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Summary

Fuel cost = miles ÷ miles per gallon × price per gallon. With made-up round numbers, 600 miles at 10 MPG is 60 gallons, and at $4 a gallon that is $240. Use FuelEconomy.gov’s trip calculator for miles, EIA weekly regional prices for fuel, and your RV’s own logged MPG.

Read the full step-by-step guide, with every official source.

Each illustration links to the guide it comes from.

An RV dinette table with an open notebook, a calculator, a pencil and a key ring with a teal fob, beside windows showing a road and hills
Trip fuel cost = miles ÷ your logged MPG × price per gallon.Illustrative image created with AI tools. Not a photo of a real person, campground or RV brand.From the guide: How Much Will Fuel Cost on Your RV Trip?
A white motorhome at a clean fuel station island at dusk, a hand holding the fuel nozzle
Log gallons and miles at each fill-up to learn your real MPG.Illustrative image created with AI tools. Not a photo of a real person, campground or RV brand.Watch the video: RV Trip Fuel Cost: How to Estimate It
An open notebook, a calculator and a pencil on an RV dinette table, road visible through the window
Do the fuel math before the trip, with your own numbers.Illustrative image created with AI tools. Not a photo of a real person, campground or RV brand.Watch the video: RV Trip Fuel Cost: How to Estimate It
A white motorhome on a long straight desert highway at sunset, viewed from behind, mountains ahead
Long highway days are where fuel cost adds up.Illustrative image created with AI tools. Not a photo of a real person, campground or RV brand.Watch the video: RV Trip Fuel Cost: How to Estimate It

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Full transcript

0:02 How much will fuel cost on your RV trip?

0:05 Use one simple formula.

0:08 Fuel cost equals miles, divided by miles per gallon, times the price per gallon.

0:13 With made-up round numbers, a 600-mile trip at 10 miles per gallon is 60 gallons.

0:19 At $4 a gallon, that's $240.

0:22 Use your own numbers.

0:24 For miles, try the trip calculator at fueleconomy.gov, run by Oak Ridge National Laboratory for the Department of Energy and the EPA.

0:33 You can edit the MPG and fuel price.

0:36 For price, the Energy Information Administration publishes weekly gasoline and diesel averages by region.

0:42 For your RV's real MPG, fill the tank and note the odometer.

0:47 At the next fill-up, divide miles driven by gallons added.

0:51 Log towing trips separately.

0:53 The worksheet is at OpenSkiesRV.com.

Frequently asked questions

How do I calculate RV fuel cost?

Divide trip miles by your RV’s MPG, then multiply by the fuel price per gallon.

Does fueleconomy.gov work for RVs?

Its trip calculator lets you edit a vehicle’s MPG and fuel price, so you can enter your RV’s own logged MPG.

What MPG does an RV get?

It varies widely by RV, weight, terrain and speed. Log your own fill-ups or ask the rental company for its logged figure.

Sources

Guide

How Much Will Fuel Cost on Your RV Trip?

How to estimate RV trip fuel cost with your own numbers: the simple formula, the free DOE/EPA trip calculator where you can enter your own MPG and fuel price, where to find current fuel prices, and how to log your RV’s real MPG.

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Education only: general information, not legal, insurance, mechanical or other professional advice for your situation. Rules, fees, recalls and campground policies change and vary by state, park and manufacturer, so check the official source we link, your RV’s manual or a qualified technician before you act. We may earn money from ads and paid links; our advice isn’t for sale.