Top 3 Largest Cargo Vans Ready for Camper Conversion

Although embracing minimalism is at the core of van life, it’s fair to ask the question: what is the largest cargo van?

When shopping for a cargo van to convert into a camper, use the wheelbase measurement to estimate the amount of livable cargo volume.  The wheelbase, commonly abbreviated WB, is simply the distance between the front and rear wheel axle.  In general, a longer wheelbase will yield more space.

Ultimately though, the interior length, width, and height of the van will tell you how much livable space you’ll have.  Even still, the interior width and interior height of the cargo van are just estimates because obstructions, such as the wheel well, interfere with the cargo space being a true rectangular box.

So whether you’re a tall human being or you want to fit two beds, a stove, and a shower in your converted cargo van, here are the top 3 largest cargo vans with the most livable cargo space available.

Largest cargo van for camper conversion

1. Dodge Ram ProMaster Cargo Van

Dodge Ram ProMaster cargo van in white

Cost: Starting at $29,995

Dodge manufactures four different sizes of the Ram ProMaster cargo vans.  The shortest Dodge Ram ProMaster van has a wheelbase of 118 inches while the longest has a 159 inch wheelbase.  The Ram ProMaster 3500 Cargo High Roof 159 Wheelbase Extended is the largest cargo van from Dodge with 462.8 cubic feet of cargo space.

Dodge Ram ProMaster Cargo Van Comparison

RoofWheel BaseLengthWidthHeightVolume
Low118 in105.1 in75.6 in65.4 in259.2 cu ft
High136 in122.8 in 75.6 in76.0 in352.9 cu ft
High159 in145.9 in75.6 in76.0 in420.2 cu ft
High Extended159 in160.2 in75.6 in76.0 in462.8 cu ft

2. Mercedes-Benz Sprinter Cargo Van

Mercedes-Benz Sprinter cargo van in white

Cost: Starting at $38,420

Mercedes-Benz manufactures four different sizes of the Sprinter cargo van.  The shortest Mercedes-Benz Sprinter van has a wheelbase of 144.3 inches while the longest has a 170 inch wheelbase.  The Sprinter 2500 High Roof 170 Extended Wheelbase is the largest cargo van from Mercedes-Benz with 530 cubic feet of cargo space.

Mercedes-Benz Sprinter Cargo Van Comparison

RoofWheel BaseLengthWidthHeightVolume
Standard144.3 in137.4 in70.1 in66.5 in319.1 cu ft
High144.3 in137.4 in 70.1 in77.8 in373.7 cu ft
High170 in178.2 in70.1 in77.8 in486.5 cu ft
High Extended170 in193.9 in70.1 in77.8 in530.0 cu ft

3. Ford Transit Cargo Van

Ford Transit cargo van in white

Cost: Starting at $32,380

Ford manufactures six different sizes of the Transit cargo van.  The shortest Ford Transit van has a wheelbase of 129.9 inches while the longest has a 147.6 inch wheelbase.  The Ford Transit High Roof Extended is the largest cargo van from Ford with 487.2 cubic feet of cargo space.

Ford Transit Cargo Van Comparison

RoofWheel BaseLengthWidthHeightVolume
Low129.9 in126.0 in70.2 in56.9 in246.7 cu ft
Medium129.9 in126.0 in70.2 in72.0 in315.2 cu ft
Low147.6 in143.7 in70.2 in56.9 in277.7 cu ft
Medium147.6 in143.7 in70.2 in72.0 in357.1 cu ft
High147.6 in143.7 in70.2 in81.5 in404.3 cu ft
High Extended147.6 in172.2 in70.2 in81.5 in487.2 cu ft

What Is the Largest Cargo Van?

The largest cargo van is the Mercedes-Benz Sprinter 2500 High Roof 170 Extended Wheelbase.  The interior cargo dimension are 16′ 1.9″ long by 5′ 10.1″ wide by 6′ 5.8″ high (193.9″ x 70.1″ x 77.8″).  As a result, this van has a whopping 530 cubic feet of livable cargo space

Thanks to its impressively long interior and above average height, the cargo volume of the Sprinter 2500 High Roof 170 Extended is huge.  This is the only cargo van available with over 500 cubic feet of cargo space.

What Is the Tallest Cargo Van?

The tallest cargo van is the Ford Transit High Roof.  There are two Transit models with a high roof:  the Ford Transit High Roof and Ford Transit High Roof Extended. The interior cargo height for both high roof models is a towering 81.5 inches (6 feet 9.5 inches).

If you’re shorter than 6 feet 4 inches, the high roof models of the Ram ProMaster (6′ 4″) and Mercedes-Benz Sprinter (6′ 5.8″) should suit your needs. But for you giants out there, a Ford Transit High Roof cargo van is your best bet if you want to stand up inside your converted camper van.

What Is the Longest Cargo Van?

The longest cargo van is the Mercedes-Benz Sprinter 2500 High Roof 170 Extended Wheelbase. The interior cargo length of this van is an impressive 193.9 inches (16 feet 1.9 inches).

The second longest cargo van is actually the non-extended version of the Mercedes-Benz Sprinter 2500. This is just 1 foot 3.7 inches shorter.

What Is the Widest Cargo Van?

The widest cargo van is the Dodge Ram ProMaster.  All ProMaster models measure in at 6 feet 3.6 inches (75.6″) wide.

If your cargo van bed plans have you sleeping widthwise, the Dodge Ram ProMaster is your best bet. When considering the curvature of the van walls and added insulation, the Dodge Ram ProMaster can sleep a relatively tall person with their head and feet at opposite sides of the van.

All Transit and Sprinter models are only 70.2″ and 70.1″ wide respectively.  Therefore, unless you’re shorter than 5 feet 10 inches, you won’t be able to sleep widthwise in these cargo vans.


Although I don’t have a camper van of my own, I recently got back from Australia where I rented a FREE camper van for a week. Perhaps, if you aren’t ready to commit to buying a cargo van just yet, you can rent one like I did to get a better feel for what #vanlife is all about.

About The Author

With a strong software engineering background, Tony is determined to leverage the internet to positively impact as many people as possible. Discover why Tony quit his dream job to pursue this mission. You can send Tony a message here.

17 thoughts on “Top 3 Largest Cargo Vans Ready for Camper Conversion”

  1. Thanks a bunch Tony!
    Looks like the Promaster may be the right choice for me given I’m 6’2″ and would like to to be able to stand up inside without slouching and sleep widthwise.
    Not sure why your data seems different than what I’ve found at:
    https://sportsmobile.com/van-dimensions/
    Maybe it’s a matter of which model year or something.
    Thanks again!

    • Happy to help Joe! For what it’s worth, I got all of my data directly from the manufacturers’ websites.
      The Promaster does seem like a good choice for you. What kind of conversion are you planning on doing to your van?

  2. Tony…Sorry for the delay in responding! Must not have signed up to receive notifications or something.
    I’m not sure which make or model I’m likely to go with. I was thinking of getting a Box Truck that would make things easier as far as height and room concerns go while recognizing I’d be taking a hit on the fuel efficiency end of things.
    Not likely to make a move very soon so chances are good I’ll be vacillating between options. Thanks again!
    Joe

  3. Tony – Thanks for the great info but I still have a question. When you say the Mercedes Extended has 16′ of interior space, is that from the dash to the back or from behind the driver’s seat to the back. Appreciate any info you can provide.

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