The current Mercedes-Benz B-Class is 171.7″ long, 70.1″ wide, on a 106.3″ wheelbase, weighing 3,252 lb. Since 2008 it has grown 2% in length and gained 9% in weight. At 14.3 feet it fits a standard garage and fits a street parking space.
Every Mercedes-Benz B-Class generation, measured
One row per generation. Watch the weight column — that is where most of the change happens, and it is the number that decides fuel use, tyre wear and how far the car takes to stop.
| Generation | Length | Width | Height | Wheelbase | Curb weight |
|---|---|---|---|---|---|
| 2008–2012 | 168.1″ | 70.1″ | 63″ | 109.4″ | 2,987 lb |
| 2013–2019 | 171.7″ | 70.1″ | 61.4″ | 106.3″ | 3,252 lb |
From 2008 to today the B-Class gained 3.5″ of length (2%) and 265 lb of weight (9%). A modern compact often outweighs the mid-size car of a generation before.
B-Class year by year
Measured every model year, not just at generation changes — 12 years on record. Small moves inside a generation are facelifts; the jumps are new platforms.
| Model year | Length | Width | Wheelbase | Curb weight | Body styles |
|---|---|---|---|---|---|
| 2019 | 172.8″ | 71.3″ | 106.3″ | 2 | |
| 2018 | 172.8″ | 71.3″ | 106.3″ | 2 | |
| 2017 | 172.8″ | 71.3″ | 106.3″ | 2 | |
| 2016 | 172.8″ | 71.3″ | 106.3″ | 2 | |
| 2015 | 172.8″ | 71.3″ | 106.3″ | 2 | |
| 2014 | 171.7″ | 70.1″ | 106.3″ | 1 | |
| 2013 | 171.7″ | 70.1″ | 106.3″ | 1 | |
| 2012 | 168.1″ | 70.1″ | 109.4″ | 1 | |
| 2011 | 168.1″ | 70.1″ | 109.4″ | 1 | |
| 2010 | 168.1″ | 70.1″ | 109.4″ | 1 | |
| 2009 | 168.1″ | 70.1″ | 109.4″ | 1 | |
| 2008 | 168.1″ | 70.1″ | 109.4″ | 1 |
Will a B-Class fit
The practical question behind every dimensions search. A single-car garage in the US is typically 20 feet deep; a street parking space is about 18. We allow a foot of clearance in both — nobody parks to the millimetre.
| Space | Typical size | This car | Verdict |
|---|---|---|---|
| Single garage | 20 ft deep | 14.3 ft | Fits, with room to open the door |
| Street parking space | 18 ft | 14.3 ft | Fits comfortably |
| Standard parking bay width | 8.5 ft wide | 5.8 ft | Room to open doors both sides |
Against cars of the same length
Compared with 691 vehicles within ten inches of the same length — a fair proxy for «cars of this size», regardless of what the marketing calls them.
| Measure | This car | Typical car of this length | Difference |
|---|---|---|---|
| Width | 70.1″ | 69.7″ | +0.4″ |
| Wheelbase | 106.3″ | 101.6″ | +4.7″ |
| Curb weight | 3,252 lb | 3,071 lb | 181 lb |
A longer wheelbase for the same overall length means shorter overhangs — usually more cabin space and a steadier ride. Lighter than typical for its size generally means better fuel economy and shorter stopping distances.
Specs vary by trim. Yours decodes from the VIN.
- Exact build, engine and factory options for one VIN
- The original window sticker as it left the factory
- What that specific configuration is worth today
- Decode a whole list of VINs at once
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- No ads, no tracking — and much more
How we measure
Dimensions come from NHTSA vPIC and Transport Canada vehicle records — manufacturer-declared figures, held in metric and converted to inches and pounds for display.
One row per generation, not per model year: manufacturers rarely change the body between facelifts, and a table of forty near-identical rows helps nobody. Where a generation offered several body styles, the figures are the base measurements for that generation.
Frequently asked questions
How long is a Mercedes-Benz B-Class?
171.7″ (14′ 4″) in its current generation, 70.1″ wide and 61.4″ tall.
How much does a Mercedes-Benz B-Class weigh?
3,252 lb at the kerb, which is 9% more than the first generation we hold from 2008.
Will a B-Class fit in a garage?
At 14.3 feet it fits a standard 20-foot single garage with room to spare. A street parking space of 18 feet is comfortable.
Has the B-Class got bigger over the years?
Yes — 3.5″ longer and 265 lb heavier since 2008, across 2 generations. Weight grew 9%, far faster than length.