1999 Chevrolet Camaro — Z28
The 1999 Chevrolet Camaro Z28 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.
235/55R16
| Section width | 235 mm |
|---|---|
| Aspect ratio (sidewall height) | 55% (129.3 mm) |
| Rim diameter | 16" |
| Overall tire diameter | ~26.2" |
| Revolutions per mile | ~770 |
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245/50R16
| Section width | 245 mm |
|---|---|
| Aspect ratio (sidewall height) | 50% (122.5 mm) |
| Rim diameter | 16" |
| Overall tire diameter | ~25.6" |
| Revolutions per mile | ~786 |
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What this size means for your Chevrolet Camaro
On the 1999 Chevrolet Camaro Z28, the factory 235/55R16 measures about 26.2″ in overall diameter with a 129.3 mm (5.1″) sidewall, and completes roughly 770 revolutions per mile. Its 55-series aspect ratio gives a balanced everyday-passenger profile — enough sidewall to soak up road shock while keeping steering response crisp. In tire terms it is a passenger (P-metric / Euro-metric) size.
The 235/55R16 and 245/50R16 differ in both width and overall diameter (0.6″, 2.3%), which usually means a staggered front/rear setup — the two sizes are not interchangeable side to side, so match each to its correct axle.
On a vehicle of this age, the Chevrolet Camaro 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 1999 Chevrolet Camaro trims
- Base Model 215/60R16 / 235/55R16
- Convertible 215/60R16 / 235/55R16
- SS 275/40R17
- SS Convertible 275/40R17
- Z28 Convertible 235/55R16 / 245/50R16
Chevrolet Camaro tire sizes by year
- 2024 Chevrolet Camaro 245/50R18
- 2023 Chevrolet Camaro 245/50R18
- 2022 Chevrolet Camaro 245/50R18
- 2021 Chevrolet Camaro 245/50R18
- 2020 Chevrolet Camaro 245/50R18
- 2019 Chevrolet Camaro 245/50R18
- 2018 Chevrolet Camaro 245/50R18 / 245/40R20
- 2017 Chevrolet Camaro 245/50R18 / 245/40R20
- 2016 Chevrolet Camaro 245/50R18 / 245/40R20
- 2015 Chevrolet Camaro 245/55R18 / 245/40R21 (Front) / 275/35R21 (Rear)
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.