The 2009 Honda Civic does not have a single universal rim size. It varies by trim and body style: base models use smaller rims, while higher trims use larger alloy wheels; the sport-oriented Si uses 18-inch rims.
To understand what you might find on a specific car, it helps to know the trim and body style (sedan or coupe). The exact wheel size is listed on the door jamb placard and in the owner's manual, and aftermarket wheels can change these figures.
Rim sizes by trim
The following breakdown reflects typical stock wheel setups for common 2009 Civic trims, noting both the wheel diameter and the corresponding tire size when available.
- DX (base): 15 x 5.5-inch steel wheels with covers; tire size typically 185/65R15
- LX: 16 x 6.5-inch alloy wheels; tire size 205/55R16
- EX: 16 x 6.5-inch alloy wheels; tire size 205/55R16
- EX-L: 16 x 6.5-inch alloy wheels; tire size 205/55R16
- Si: 18 x 7.5-inch alloy wheels; tire size 235/40R18
Remember that exact sizes can vary by market or model year nuance, and the door jamb sticker in your vehicle provides the definitive specification for that car.
What this means for owners and buyers
When shopping for a used 2009 Civic or planning wheel upgrades, keep the trim in mind. If you’re aiming for a factory look, match the original wheel diameter (15", 16", or 18" as listed above) and use the correct tire size to preserve speedometer accuracy and handling characteristics. If you’re changing wheels, verify bolt pattern, offset, and clearance to avoid rub and fitment issues.
Summary
In the 2009 Honda Civic lineup, rim size depends on trim: DX uses 15-inch wheels, LX/EX/EX-L use 16-inch wheels, and the Si uses 18-inch wheels. Tire sizes correspond accordingly (roughly 185/65R15 for DX, 205/55R16 for LX/EX/EX-L, and 235/40R18 for Si). For precise figures, check the vehicle’s door jamb placard or the owner’s manual.