Trucks & Towing Calculator
RV Fuel Cost Calculator
Motorhomes are thirsty, so fuel is often the biggest line item on an RV trip. Plan your budget with total cost, cost per day, and how many fill-ups you'll make.
Your Trip
Total Fuel Cost
for 2,000 miles round trip
Gallons Needed
222 gal
Cost per Mile
$0.50
Cost per Day
$143
Fill-Ups Needed
4
Stretch every gallon
RV fuel economy drops fast with speed, headwinds, and mountain grades. Slowing from 65 to 60 mph and keeping tires properly inflated can save $80+ on this trip.
How it works.
Frequently asked questions.
What MPG should I expect from my RV?
It varies widely by type. Large Class A gas motorhomes often get 6–8 MPG, diesel pushers 8–10, Class C around 9–12, and camper vans 16–20. Towing a car behind, headwinds, and mountain driving all pull the figure down, so use your real-world average when you have it.
Is diesel cheaper to run than gas for an RV?
Diesel RVs usually get better mileage and hold value well, but diesel fuel often costs more per gallon and maintenance can be pricier. For high-mileage full-timers the efficiency often wins; for occasional trips the gas rig's lower purchase price may matter more.
How can I lower RV fuel costs?
Slow down — wind resistance rises sharply with speed — keep tires at the correct pressure, reduce weight and roof cargo, plan routes that avoid steep grades, and use fuel apps to find cheaper diesel or gas along your route.