Has the H3 got bigger over the years?

Yes — the H3 has grown 4 cm longer since the 2005 H3.

How big is the H3 boot?

The current H3 has a boot of 835 litres with the seats up.

What is the H3 wheelbase?

The current H3 has a 2,841 mm wheelbase.

Dimensions2007–2009

Hummer H3 — dimensions

The current Hummer H3 is 4,782 mm long, 1,989 mm wide and 1,872 mm tall, on a 2,841 mm wheelbase. It has grown 4 cm longer since the 2005 H3.

4,782mmLength

1,989mmWidth

1,872mmHeight

2,841mmWheelbase

835lBoot capacity

How the H3 has grown

4,742

4,782

2005

2007

Years	Length	Width	Height	Wheelbase	Boot capacity	Turning circle
2005–2007	4,742	1,896	1,893	2,842	835	11.3
2007–2009Current	4,782	1,989	1,872	2,841	835	11.3

Frequently asked

How big is the Hummer H3?: The current Hummer H3 is 4,782 mm long, 1,989 mm wide and 1,872 mm tall.
Has the H3 got bigger over the years?: Yes — the H3 has grown 4 cm longer since the 2005 H3.
How big is the H3 boot?: The current H3 has a boot of 835 litres with the seats up.
What is the H3 wheelbase?: The current H3 has a 2,841 mm wheelbase.

How this is measured

Exterior figures are manufacturer specifications for the H3, 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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