Size comparison · drawn to scale
Opel Astra H vs Opel Astra G: size comparison
- Length Astra H 139 mm5 in longer
- Width Astra H 44 mm2 in wider
- Height Astra H 15 mm0.6 in taller
- Boot Astra H 10 L0.4 cu ft more
Car 1 blue, solid outline
Car 2 coral, dashed outline
Change cars
Zoom in to read the measurements - or see the table below.
Scale about 1:19 on a desktop screen · grid 500 mm1 ft · in Overlay both cars start at the front bumper Side view: dashed lines mark the axles Front view: width without mirrors Top view: footprint on the road
Dimensions and difference
The Astra H is 139 mm5 in longer, 44 mm2 in wider and 15 mm0.6 in taller than the Astra G. Its wheelbase is 8 mm0.3 in longer.
| Dimension | Astra H | Astra G | Difference, car 1 vs car 2 |
|---|---|---|---|
| Length | 4,249 mm13 ft 11 in13 ft 11 in4,249 mm | 4,110 mm13 ft 6 in13 ft 6 in4,110 mm | +139 mm+5 in +3.4% |
| Width | 1,753 mm5 ft 9 in5 ft 9 in1,753 mm | 1,709 mm5 ft 7 in5 ft 7 in1,709 mm | +44 mm+2 in +2.6% |
| Height | 1,440 mm4 ft 9 in4 ft 9 in1,440 mm | 1,425 mm4 ft 8 in4 ft 8 in1,425 mm | +15 mm+0.6 in +1.1% |
| Wheelbase | 2,614 mm8 ft 7 in8 ft 7 in2,614 mm | 2,606 mm8 ft 7 in8 ft 7 in2,606 mm | +8 mm+0.3 in +0.3% |
| Footprint | 7.45 m²80.2 sq ft80.2 sq ft7.45 m² | 7.02 m²75.6 sq ft75.6 sq ft7.02 m² | +0.42 m²+4.6 sq ft +6.0% |
| Boot | 380 L13.4 cu ft13.4 cu ft380 L | 370 L13.1 cu ft13.1 cu ft370 L | +10 L+0.4 cu ft +2.7% |
| Kerb weight | 1,230 kg2,712 lb2,712 lb1,230 kg | Not in our catalog yet | - |
Width without mirrors. Figures come from the catalog version pages; the drawing uses the same numbers. Body outlines are generic for the body type - proportions are exact, styling is not.
Garage and parking
A typical single garage is about 5.5 × 3.0 m18 ft 1 in × 9 ft 10 in inside; a parking bay about 5.0 × 2.5 m16 ft 5 in × 8 ft 2 in. Room to open a door: about 600 mm2 ft each side.
Astra H
- Single garage
- Fits 1,251 mm4 ft 1 in to spare in length, 624 mm2 ft 1 in each side
- Parking bay
- Tight 751 mm2 ft 6 in to spare in length, 374 mm1 ft 3 in each side
Astra G
- Single garage
- Fits 1,390 mm4 ft 7 in to spare in length, 646 mm2 ft 1 in each side
- Parking bay
- Tight 890 mm2 ft 11 in to spare in length, 396 mm1 ft 4 in each side
Frequently asked questions
Which is bigger, the Opel Astra H or the Opel Astra G?
The Opel Astra H is the bigger car by footprint (length × width). The Astra H is 139 mm longer, 44 mm wider and 15 mm taller than the Astra G. Its wheelbase is 8 mm longer.
Will the Opel Astra H and the Opel Astra G fit in a standard garage?
In a typical single garage of 5.5 × 3.0 m inside: The Opel Astra H fits with room to open the doors (1,251 mm to spare in length, 624 mm each side). The Opel Astra G fits with room to open the doors (1,390 mm to spare in length, 646 mm each side). Widths are without mirrors; check your own garage with our garage checker.
Which has the bigger boot?
The Opel Astra H: 380 L against 370 L in the Opel Astra G (seats up, as quoted by the maker).
Drawn to one scale
Both cars use the same millimetre grid, so a longer bonnet or a taller roof shows exactly as it is.
Wheels at the real wheelbase
Dashed lines mark the axles. In Overlay both cars start at the front bumper; car 2 has a dashed outline.
Will it fit my garage?
Switch to Top view, or to feet and inches if your garage plan is in feet. Allow about 600 mm (2 ft) for opening the doors.

