The 2012 Honda Civic uses different factory tire sizes depending on trim and body style. The most common original equipment sizes are 195/65R15 for LX, 205/55R16 for EX/EX-L, and 235/40R18 for the Civic Si. Always verify the exact size on the door jamb sticker or in the owner's manual, as wheel options can vary by model and region.
OEM tire sizes by trim
The following list reflects typical stock configurations for the 2012 Civic across sedan and coupe body styles, noting the wheel size that pairs with each tire size.
- LX (sedan and coupe): 195/65R15 tires on 15-inch wheels
- EX and EX-L (sedan and coupe): 205/55R16 tires on 16-inch wheels
- Si (sedan and coupe): 235/40R18 tires on 18-inch wheels
These figures represent common factory setups for U.S.-market 2012 Civics. If your Civic has an aftermarket wheel package or a different region-specific option, sizes may differ. Always confirm with the placard on the door frame or the owner's manual before purchasing replacements.
Notes on fit and replacements
When selecting tires, ensure the overall diameter stays within about 3% of the OEM specification to maintain accurate speedometer readings and handling. If you change wheel sizes (for example, moving to 17" or 19" wheels), you may need to adjust tire width and aspect ratio, and you should consider recalibrating the speedometer or obtaining appropriate spacers/offsets to avoid rubbing or suspension contact.
Summary
The 2012 Civic uses different tire sizes by trim: 195/65R15 for LX, 205/55R16 for EX/EX-L, and 235/40R18 for Si, with variations depending on body style and regional specs. Always verify your exact size on the door placard and consult your owner's manual when replacing tires or upgrading wheels.