Mercedes Sprinter Specs for Camper Van Conversions: 144 vs 170
Sprinter 144 and 170 dimensions, interior height, engine output, fuel capacity and real-world range.
These are the numbers we reference every day on the shop floor. Published 2026 specs vary slightly by trim, drive type, and bumper configuration, so treat these as planning figures and confirm the exact build sheet before you buy.
Exterior dimensions
| --- | 144" WB | 170" WB | 170" Extended |
|---| | --- | --- | --- |
| Overall length | ~234 in (19.5 ft) | ~274 in (22.8 ft) | ~290 in (24.2 ft) |
| Width, body | ~79 in | ~79 in | ~79 in |
| Width, mirrors | ~92 in | ~92 in | ~92 in |
| High Roof height | ~107–109 in | ~109 in | ~111 in |
Add a fan, solar, and a roof rack and a High Roof Sprinter will approach 9.5 feet. Measure your garage before you sign anything.
Interior dimensions
High Roof models give roughly 79 inches of standing height — enough for most people over six feet to stand flat-footed. Maximum floor width is about 70 inches, narrowing to roughly 56 inches between the wheel wells, which is the dimension that decides whether a bed can run sideways. Cargo volume runs from about 319 cubic feet on the 144 up to 533 on the 170 Extended High Roof.
Engine, transmission, drivetrain
The Sprinter runs a 2.0L turbocharged four-cylinder diesel. The standard tune makes about 170 hp and 295 lb-ft; the high-output version delivers roughly 211 hp and 332 lb-ft. Both pair with a nine-speed automatic. Rear-wheel drive is standard, with AWD available depending on configuration.
Fuel capacity and range
The Sprinter carries roughly 24.5 gallons of diesel. Converted vans typically see somewhere in the high teens to low twenties for mpg depending on weight, roof rack drag, and elevation, which puts practical touring range in the neighborhood of 300 to 400 miles. Diesel exhaust fluid is a separate tank you will need to top up.
Weight and towing
GVWRs run from roughly 9,050 lbs on a 2500 to 11,030 on a 3500, with towing typically rated at 5,000 lbs and up to 7,500 on heavy-duty configurations. Payload matters more than people expect: a full water tank, batteries, and gear add up fast, and a well-engineered build accounts for it.
Frequently asked
Can you stand up in a Sprinter? Yes, in High Roof models — about 79 inches of interior height. How long is a Sprinter 144? Roughly 234 inches, or 19.5 feet. What's the difference between a 170 and a 170 Extended? About 16 inches of rear overhang, which usually becomes garage storage rather than living space.
