Has the GLB got bigger over the years?

Yes — the GLB has grown 9 cm longer since the 2020 GLB.

How big is the GLB boot?

The current GLB has a boot of 540 litres with the seats up.

What is the GLB wheelbase?

The current GLB has a 2,889 mm wheelbase.

Dimensions2026–present

Mercedes-Benz GLB — dimensions

The current Mercedes-Benz GLB is 4,728 mm long, 1,860 mm wide and 1,686 mm tall, on a 2,889 mm wheelbase. It has grown 9 cm longer since the 2020 GLB.

4,728mmLength

1,860mmWidth

1,686mmHeight

2,889mmWheelbase

540lBoot capacity

How the GLB has grown

4,634

4,646

4,728

2020

2023

2026

Years	Length	Width	Height	Wheelbase	Boot capacity	Turning circle
2020–2023	4,634	1,834	1,658	2,829	565	10.0
2023–2026	4,646	1,850	1,704	2,829	565	—
2026–presentCurrent	4,728	1,860	1,686	2,889	540	11.8

Frequently asked

How big is the Mercedes-Benz GLB?: The current Mercedes-Benz GLB is 4,728 mm long, 1,860 mm wide and 1,686 mm tall.
Has the GLB got bigger over the years?: Yes — the GLB has grown 9 cm longer since the 2020 GLB.
How big is the GLB boot?: The current GLB has a boot of 540 litres with the seats up.
What is the GLB wheelbase?: The current GLB has a 2,889 mm wheelbase.

How this is measured

Exterior figures are manufacturer specifications for the GLB, averaged per generation across its variants and shown for the most common body style. Generations with the same size are merged. Boot capacity is the seats-up figure where the manufacturer quotes one.

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