1998 Chevrolet Monte Carlo — LS
The 1998 Chevrolet Monte Carlo 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.
205/70R15
| Section width | 205 mm |
|---|---|
| Aspect ratio (sidewall height) | 70% (143.5 mm) |
| Rim diameter | 15" |
| Overall tire diameter | ~26.3" |
| Revolutions per mile | ~767 |
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225/60R16
| Section width | 225 mm |
|---|---|
| Aspect ratio (sidewall height) | 60% (135 mm) |
| Rim diameter | 16" |
| Overall tire diameter | ~26.6" |
| Revolutions per mile | ~757 |
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What this size means for your Chevrolet Monte Carlo
On the 1998 Chevrolet Monte Carlo LS, the factory 205/70R15 measures about 26.3″ in overall diameter with a 143.5 mm (5.6″) sidewall, and completes roughly 767 revolutions per mile. Its 70-series aspect ratio gives a tall sidewall of the kind used on trucks, SUVs, and older passenger cars, built for cushioning and load. In tire terms it is a passenger (P-metric / Euro-metric) size.
The 205/70R15 and 225/60R16 roll within 0.3″ (1.1%) of each other in overall diameter, so they are interchangeable from a speedometer standpoint — the second size is an optional wheel package rather than a different rolling size.
On a vehicle of this age, the Chevrolet Monte Carlo 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 1998 Chevrolet Monte Carlo trims
- Z34 225/60R16
Chevrolet Monte Carlo tire sizes by year
- 2007 Chevrolet Monte Carlo 225/60R16
- 2006 Chevrolet Monte Carlo 225/60R16
- 2005 Chevrolet Monte Carlo 225/60R16
- 2004 Chevrolet Monte Carlo 225/60R16
- 2003 Chevrolet Monte Carlo 225/60R16
- 2002 Chevrolet Monte Carlo 225/60R16
- 2001 Chevrolet Monte Carlo 225/60R16
- 2000 Chevrolet Monte Carlo 225/60R16
- 1999 Chevrolet Monte Carlo 205/70R15 / 225/60R16
- 1997 Chevrolet Monte Carlo 205/70R15 / 225/60R16
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.