Welcome To Car Repair & Service
Welcome To Car Repair & Service
One of the biggest questions on every RVer’s mind before hitting the road is: “How much is this going to cost in fuel?” Gas and diesel prices fluctuate, and the sheer size of a motorhome can make fuel the single largest expense of your trip.
Planning ahead is the key to a stress-free adventure. Our interactive and detailed RV Fuel Calculator is designed to eliminate the guesswork. By inputting a few key details about your vehicle and your journey, you can get a comprehensive cost breakdown in seconds, helping you budget with confidence and enjoy the open road.
Our tool is more than just a simple estimator; it’s a complete trip-planning assistant. Here’s a step-by-step guide to understanding each input for the most accurate results.
Trip Length (Miles): Enter the total one-way mileage for your journey. Use Google Maps or your preferred navigation app to get an accurate distance from your start point to your destination.
RV Fuel Efficiency (MPG): This is your vehicle’s “Miles Per Gallon.” If you’re unsure, check your RV’s manual or use our general estimates in the FAQ below as a starting point.
Fuel Price ($ per gallon): Input the average price of fuel you expect to pay. A quick search for gas prices along your primary route can give you a realistic number.
RV Fuel Tank Size (Gallons): Knowing your tank size allows our calculator to estimate how many times you’ll need to stop to refuel—a crucial detail for long-haul trips.
Number of Travelers: Traveling with friends or family? This feature divides the total fuel cost to show you the cost per person, making it easy to split expenses.
Round Trip Toggle: Simply click this switch if you’re returning along the same route. The calculator will automatically double your trip length for a complete journey estimate.
Once you’ve entered your information, the results panel will instantly update with a detailed breakdown:
Total Fuel Cost: The big number you need for your budget.
Total Gallons: The total amount of fuel your RV will consume.
Cost Per Mile: A helpful metric for comparing the efficiency of different trips.
Refueling Stops: An estimate of how many times you’ll visit the pump.
Cost Per Person: The fuel cost split equally among all travelers.
Saving even one mile per gallon can add up to hundreds of dollars on a long trip. Use these tips to maximize your fuel efficiency:
Maintain a Steady Speed: RVs are least efficient during rapid acceleration. Use cruise control on highways and aim for a consistent speed, ideally between 55-65 mph.
Reduce Weight: Before you leave, go through your RV and remove any unnecessary items. The lighter your rig, the less fuel it will burn.
Check Tire Pressure: Under-inflated tires increase rolling resistance and can decrease your MPG by over 3%. Always ensure your tires are inflated to the manufacturer’s recommended PSI.
Minimize Generator Use: Your onboard generator draws fuel directly from your RV’s main tank. Limit its use when possible by staying at campsites with electrical hookups.
Plan Your Route: Avoid steep mountain passes and traffic-heavy urban areas when possible. A flatter, smoother route is a more fuel-efficient route.
What is a realistic MPG for an RV?
Fuel efficiency varies dramatically by RV class:
Class A: 6-10 MPG
Class B (Camper Vans): 18-25 MPG
Class C: 8-15 MPG
Fifth Wheels/Travel Trailers: Your MPG will depend on your tow vehicle, but expect a 20-40% reduction from its normal efficiency when towing.
How can I find the cheapest fuel on my trip?
Apps like GasBuddy, Waze, and Google Maps can show you real-time fuel prices at stations along your route, helping you plan your stops around lower-cost options.
Does running the RV air conditioner affect my fuel economy?
Yes, it does. The engine-powered AC unit puts an extra load on the engine, which can reduce your fuel economy by 5-10%, especially in older models.