2008 Chevrolet Cobalt — Sedan LS
The 2008 Chevrolet Cobalt Sedan LS shipped with 2 different factory tire sizes, depending on the wheel package it left the factory with (this can also reflect a staggered front/rear setup). Check your tire sidewall or door placard to confirm which one applies to your vehicle.
This trim shipped with more than one tire size (staggered fitment, front/rear, or optional wheel package). Confirm which one matches your vehicle by checking your tire sidewall or door placard.
195/60R15
| Section width | 195 mm |
|---|---|
| Aspect ratio (sidewall height) | 60% (117 mm) |
| Rim diameter | 15" |
| Overall tire diameter | ~24.2" |
| Revolutions per mile | ~833 |
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195/65R15
| Section width | 195 mm |
|---|---|
| Aspect ratio (sidewall height) | 65% (126.8 mm) |
| Rim diameter | 15" |
| Overall tire diameter | ~25" |
| Revolutions per mile | ~807 |
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What this size means for your Chevrolet Cobalt
On the 2008 Chevrolet Cobalt Sedan LS, the factory 195/60R15 measures about 24.2″ in overall diameter with a 117 mm (4.6″) sidewall, and completes roughly 833 revolutions per mile. Its 60-series aspect ratio gives a taller, comfort-biased sidewall that favors ride quality and shrugs off rough pavement. In tire terms it is a passenger (P-metric / Euro-metric) size.
The 195/60R15 and 195/65R15 differ by about 0.8″ (3.3%) in overall diameter; a gap this size is enough to affect speedometer and odometer readings, so confirm which one your vehicle actually left the factory with.
On a vehicle of this age, the Chevrolet Cobalt may have been refitted with a slightly different replacement size somewhere in its life, so check the current sidewall — not just the factory spec — before buying.
Other 2008 Chevrolet Cobalt trims
- Coupe LS 195/60R15 / 195/65R15
- Coupe LT 195/60R15 / 205/55R16
- Coupe LT with 5 Lug Wheels 205/55R16
- Coupe Sport 205/50R17
- Coupe SS 225/40R18
- Sedan LT 195/60R15 / 205/55R16
- Sedan LT with 5 Lug Wheels 205/55R16
- Sedan Sport 205/50R17
- Sedan SS 225/40R18
Chevrolet Cobalt tire sizes by year
- 2010 Chevrolet Cobalt 195/60R15 / 205/55R16
- 2009 Chevrolet Cobalt 195/60R15
- 2007 Chevrolet Cobalt 195/60R15
- 2006 Chevrolet Cobalt 195/60R15
- 2005 Chevrolet Cobalt 195/60R15
How to read a tire size
A tire size like 225/45R17 breaks down into three parts:
the first number is the section width in millimeters
(the tire's width from sidewall to sidewall), the second is the
aspect ratio — the sidewall's height as a percentage of
that width — and the number after the "R" is the rim
diameter in inches. A letter prefix (P or LT) indicates
Passenger or Light Truck construction; its absence usually means
Euro-metric sizing.
Some trucks and off-road tires instead use "flotation" sizing, like
37X12.50R17 — here the numbers are the tire's overall
diameter and width in inches directly, with the rim diameter last.
Always verify against the tire information placard on your driver's-side door jamb or your owner's manual before purchasing — tire size can vary by factory option package even within the same trim.