Porsche Boxster Tire Sizes & Rim Dimensions by Model Year and Trim
The Porsche Boxster features varying tire sizes and rim dimensions depending on the model year and trim level. Early models typically use rim sizes ranging from 17 to 19 inches in diameter, with widths adjusted for sport and base trims.\n\nTire markings on Boxster models follow standard notation, showing width, aspect ratio, and rim diameter (e.g., 235/40ZR18). Rim widths often correspond to these tire sizes to maintain performance and handling characteristics specific to each trim.\n\nWhen comparing trims, it's important to note the differences in tire widths and rim diameters, as sportier trims generally feature wider wheels for enhanced grip. Always consult manufacturer specifications to ensure proper fitment and safety.\n\nPractical guidance for choosing tires involves matching the original equipment tire size and rim width or selecting compatible sizes within manufacturer tolerance. This maintains driving dynamics and preserves the vehicle's design intent.
| Make / model / trim | Year | Tire size | Wheel |
|---|---|---|---|
| Porsche Boxster 2.7 | 2019 | 205/55R17 | 6.5" × 17" |
| Porsche Boxster GTS 3.4 | 2019 | 235/45R18 | 6.5" × 17" |
| Porsche Boxster S 3.4 | 2019 | 235/45R18 | 6.5" × 17" |
| Porsche Boxster 2.7 | 2018 | 205/55R17 | 6.5" × 17" |
| Porsche Boxster GTS 3.4 | 2018 | 235/45R18 | 6.5" × 17" |
| Porsche Boxster S 3.4 | 2018 | 235/45R18 | 6.5" × 17" |
| Porsche Boxster 2.7 | 2017 | 205/55R17 | 6.5" × 17" |
| Porsche Boxster GTS 3.4 | 2017 | 235/45R18 | 6.5" × 17" |
| Porsche Boxster S 3.4 | 2017 | 235/45R18 | 6.5" × 17" |
| Porsche Boxster 2.7 | 2016 | 205/55R17 | 6.5" × 17" |
| Porsche Boxster GTS 3.4 | 2016 | 235/45R18 | 6.5" × 17" |
| Porsche Boxster S 3.4 | 2016 | 235/45R18 | 6.5" × 17" |
| Porsche Boxster 2.7 | 2015 | 205/55R17 | 6.5" × 17" |
| Porsche Boxster GTS 3.4 | 2015 | 235/45R18 | 6.5" × 17" |
| Porsche Boxster S 3.4 | 2015 | 235/45R18 | 6.5" × 17" |
| Porsche Boxster 2.7 | 2014 | 205/55R17 | 6.5" × 17" |
| Porsche Boxster GTS 3.4 | 2014 | 235/45R18 | 6.5" × 17" |
| Porsche Boxster S 3.4 | 2014 | 235/45R18 | 6.5" × 17" |
| Porsche Boxster 2.7 | 2013 | 205/55R17 | 6.5" × 17" |
| Porsche Boxster S 3.4 | 2013 | 235/45R18 | 6.5" × 17" |
| Porsche Boxster 2.7 | 2012 | 205/55R17 | 6.5" × 17" |
| Porsche Boxster S 3.4 | 2012 | 235/45R18 | 6.5" × 17" |
| Porsche Boxster 2.9 | 2011 | 205/55R17 | 6.5" × 17" |
| Porsche Boxster S 3.4 | 2011 | 235/40R18 | 8" × 18" |
| Porsche Boxster Spyder 3.4 | 2011 | 235/40R18 | 8" × 18" |
| Porsche Boxster 2.9 | 2010 | 205/55R17 | 6.5" × 17" |
| Porsche Boxster S 3.4 | 2010 | 235/40R18 | 8" × 18" |
| Porsche Boxster Spyder 3.4 | 2010 | 235/40R18 | 8" × 18" |
| Porsche Boxster 2.7 | 2009 | 205/55R17 | 6.5" × 17" |
| Porsche Boxster 2.9 | 2009 | 205/55R17 | 6.5" × 17" |
| Porsche Boxster S 3.4 | 2009 | 235/40R18 | 8" × 18" |
| Porsche Boxster 2.7 | 2008 | 205/55R17 | 6.5" × 17" |
| Porsche Boxster S 3.4 | 2008 | 235/40R18 | 8" × 18" |
| Porsche Boxster 2.7 | 2007 | 205/55R17 | 6.5" × 17" |
| Porsche Boxster S 3.4 | 2007 | 235/40R18 | 8" × 18" |
| Porsche Boxster 2.7 | 2006 | 205/55R17 | 6.5" × 17" |
| Porsche Boxster S 3.2 | 2006 | 235/40R18 | 8" × 18" |
| Porsche Boxster S 3.4 | 2006 | 235/40R18 | 8" × 18" |
| Porsche Boxster 2.7 | 2005 | 205/55R17 | 6.5" × 17" |
| Porsche Boxster S 3.2 | 2005 | 235/40R18 | 8" × 18" |
| Porsche Boxster 2.7 | 2004 | 205/50R17 | 7.5" × 17" |
| Porsche Boxster S 3,2 | 2004 | 205/50R17 | 7.5" × 17" |
| Porsche Boxster S 3.2 | 2004 | 235/40R18 | 8" × 18" |
| Porsche Boxster 2.5i | 2003 | 205/55R16 | 7" × 16" |
| Porsche Boxster 2.7 | 2003 | 205/50R17 | 7.5" × 17" |
| Porsche Boxster 2.7i | 2003 | 205/50R17 | 7.5" × 17" |
| Porsche Boxster S 3,2 | 2003 | 205/50R17 | 7.5" × 17" |
| Porsche Boxster 2.5i | 2002 | 205/55R16 | 7" × 16" |
| Porsche Boxster 2.7 | 2002 | 205/50R17 | 7.5" × 17" |
| Porsche Boxster 2.7i | 2002 | 205/50R17 | 7.5" × 17" |
| Porsche Boxster S 3,2 | 2002 | 205/50R17 | 7.5" × 17" |
| Porsche Boxster 2.5i | 2001 | 205/55R16 | 7" × 16" |
| Porsche Boxster 2.7 | 2001 | 205/50R17 | 7.5" × 17" |
| Porsche Boxster 2.7i | 2001 | 205/50R17 | 7.5" × 17" |
| Porsche Boxster S 3.2 | 2001 | 205/50R17 | 7.5" × 17" |
| Porsche Boxster 2.5i | 2000 | 205/55R16 | 7" × 16" |
| Porsche Boxster 2.7 | 2000 | 205/50R17 | 7.5" × 17" |
| Porsche Boxster 2.7i | 2000 | 205/50R17 | 7.5" × 17" |
| Porsche Boxster S 3.2 | 2000 | 205/50R17 | 7.5" × 17" |
| Porsche Boxster 2.5 | 1999 | 205/55R16 | 7" × 16" |
| Porsche Boxster 2.5i | 1999 | 205/55R16 | 7" × 16" |
| Porsche Boxster 2.7 | 1999 | 205/50R17 | 7.5" × 17" |
| Porsche Boxster 2.7i | 1999 | 205/50R17 | 7.5" × 17" |
| Porsche Boxster S 3.2 | 1999 | 205/50R17 | 7.5" × 17" |
| Porsche Boxster 2.5 | 1998 | 205/55R16 | 7" × 16" |
| Porsche Boxster 2.5i | 1998 | 205/55R16 | 7" × 16" |
| Porsche Boxster 2.7i | 1998 | 205/50R17 | 7.5" × 17" |
| Porsche Boxster 2.5 | 1997 | 205/55R16 | 7" × 16" |
| Porsche Boxster 2.5i | 1997 | 205/55R16 | 7" × 16" |
| Porsche Boxster 2.7i | 1997 | 205/50R17 | 7.5" × 17" |
| Porsche Boxster 2.5 | 1996 | 205/55R16 | 7" × 16" |
| Porsche Boxster 2.5i | 1996 | 205/55R16 | 7" × 16" |
| Porsche Boxster 2.7i | 1996 | 205/50R17 | 7.5" × 17" |
For bolt pattern (PCD), offset ET, center bore, and mounting details, open the bolt pattern page for Porsche Boxster.
FAQ
- What tire sizes are common on Porsche Boxster base models?
- Base models often feature front tires sized around 205/55ZR16 and rear tires near 225/50ZR16, with rim diameters typically 16 to 17 inches.
- How do tire sizes differ on sport trims of the Porsche Boxster?
- Sport trims usually have larger and wider rims, such as 18 or 19 inches, with wider tires to improve handling and grip.
- Can I use tires with different rim widths on my Porsche Boxster?
- Using tires on rim widths outside manufacturer recommendations can affect performance and safety; always verify compatibility before changes.
Tire size calculatorShow
Compare two tire sizes — diameter, speedometer error, and clearance change.
| Size 1 | Size 2 | Diff | Diff(%) | |
|---|---|---|---|---|
| Diameter | 25.0" | 25.4" | 0.5" | 1.89% |
| Width | 7.7" | 8.5" | 0.8" | 10.26% |
| Circumference | 78.4" | 79.9" | 1.5" | 1.86% |
| Profile height | 5.0" | 4.2" | -0.7" | -15.08% |
| Turnover per mile | 807 | 793 | 14 | -1.73% |
| Clearance | - | - | +0.2" | - |






Speedometer Error
(First wheel OEM size)
| Reading | 20 mph | 30 mph | 40 mph | 50 mph | 60 mph | 70 mph | 80 mph | 90 mph |
|---|---|---|---|---|---|---|---|---|
| Actual | 20.4 | 30.5 | 40.7 | 50.9 | 61.1 | 71.2 | 81.4 | 91.6 |
