Tire Size 245/45r18 in inches

Tire size 245/45R18 equates to 26.7×9.6R18 in inches and has a diameter of 26.7 inches, a section width of 9.6 inches, a wheel diameter of 18 inches, and is approved to be mounted on 7.5-9.0 inches wide wheels. Essentially, this tire size provides a perfect blend of performance and comfort, making it a popular choice for many vehicle owners.

245/45r18 in inches

Quickly absorb comprehensive measurements in inches and millimeters using this Table chart.

Feature Inches Metric
Tire Diameter 26.7 677.7
Section Width 9.6 245
Rim Height 18 457
Sidewall Height 4.3 110.3
Circumference 83.8 2129.1
Revolutions 470 per km 756 per mile
Rim Width Range 7.5-9.0 190.5 – 228.6

How Tall Is A 245/45R18 Tire?

The tire height of the 245/45R18 tire size is 26.7 inches or 677.7 millimeters. This is also referred to as the tire’s overall diameter. The height or diameter of a tire plays a significant role in vehicle dynamics, impacting aspects like road grip, vehicle stability, and fuel efficiency.

What Is the 245/45R18 Width In Inches?

The tread width of the 245/45R18 tire size is 9.6 inches, equivalent to 245 millimeters. The width determines how much of the tire is in contact with the road, which directly affects the handling and traction capabilities of the vehicle.

What Is the 245/45R18 Sidewall Height?

The 245/45R18 tire’s sidewall height is 4.3 inches or 110.3 millimeters. This is the height from the wheel rim to the top of the tire’s tread. The sidewall height can impact the overall ride comfort, handling, and speedometer accuracy.

What Is the 245/45R18 Tire Circumference?

The circumference of the 245/45R18 tire size is 83.8 inches or 2129.1 millimeters. This measurement can influence the tire’s revolutions per mile, which is a crucial factor for speedometer accuracy.

What Is the 245/45R18 Revolutions Per Mile?

For the 245/45R18 tire size, there are approximately 756 revolutions per mile or 470 revolutions per kilometer. This measure is critical as it affects the accuracy of your speedometer and odometer, affecting fuel efficiency and tire wear as well.

What Is the 245/45R18 Rims Size?

The 245/45R18 tire size rim diameter is 18 inches, equivalent to 457 millimeters. The tire is approved to be mounted on rims with a width range between 7.5 to 9 inches or 190.5 to 228.6 millimeters.

Fitment Guide
This table will guide you on which vehicle models can accommodate the 245/45R18 tire size. Given the popularity and versatility of this size, many manufacturers offer it as a standard or optional tire size for their vehicles.

Brand Name Model
ACURA RL (2005 – 2013), RLX (2013 – 2017), TL (2009 – 2014), TLX (2014 – 2020), TLX-L (2018 – 2021), TSX (2010 – 2014)
ALFA ROMEO Crosswagon Q4 (2004 – 2007)
AUDI A4 Allroad (2009 – 2023), A6 (2011 – 2018), A6 Allroad (2000 – 2011), A8 (1994 – 2003), Allroad (2013 – 2016), S8 (1996 – 2003)
BMW 4 Series (2021 – 2023), 5 Series (2009 – 2023), 6 Series (2003 – 2019), 8 Series (2018 – 2023), i4 (2021 – 2023), M5 (2004 – 2010), M6 (2005 – 2010), Z8 (2000 – 2003)
BMW ALPINA B5 (2005 – 2010)
BUICK Allure (2010 – 2010), Cascada (2016 – 2019), LaCrosse (2005 – 2014), Regal (2009 – 2023), Regal GS (2014 – 2023), Regal TourX (2018 – 2021)
CADILLAC Allante (1992 – 1993), CT5 (2019 – 2023), CTS-V (2004 – 2007), DeVille (2000 – 2005), Eldorado (1993 – 2002), Seville (1992 – 1997)
CHEVROLET Colorado (2004 – 2011), Malibu (2012 – 2023), Malibu XL (2016 – 2023)
CHRYSLER 200 (2010 – 2014), 300M (1998 – 2004), Concorde (1998 – 2004), LHS (1994 – 2001), New Yorker (1996 – 1998)
CITROËN C5 (2008 – 2021), C6 (2005 – 2023)
CUPRA Formentor (2020 – 2023)
DAEWOO G2X (2007 – 2009), Veritas (2008 – 2010)
DODGE Caravan (1987 – 1995), Grand Caravan (1988 – 1995), Intrepid (1998 – 2004)
DONGFENG Aeolus A9 (2016 – 2019)
FAW AUDI A6 (2016 – 2020), A6 Allroad (2018 – 2020)
FAW VOLKSWAGEN CC (2019 – 2020)
FERRARI 612 Scaglietti (2004 – 2011)
GEELY Emgrand GT (2017 – 2020), GC9 (2015 – 2019)
GENESIS G80 (2016 – 2020)
HOLDEN Adventra (2003 – 2006), Caprice (2006 – 2015), Cascada (2014 – 2017), Commodore (2006 – 2021), Crewman (2003 – 2007), Malibu (2013 – 2017), One Tonner (2003 – 2007), Ute (2002 – 2017)
HONDA Legend (2006 – 2012)
HYUNDAI Aslan (2014 – 2018), Azera (2006 – 2023), Centennial (1999 – 2008), Equus (1999 – 2008), Genesis (2013 – 2017), Genesis Coupe (2008 – 2016), Grandeur (2005 – 2022), Tucson (2015 – 2018)
INFINITI G (2002 – 2015), M (2002 – 2008), Q60 (2013 – 2016)
JAGUAR F-Type (2012 – 2023), XF (2007 – 2023), XFL (2020 – 2023), XJ (1997 – 2003), XK (1996 – 2015)
KIA Cadenza (2009 – 2021), K5 (2021 – 2023), K7 (2009 – 2021), K8 (2021 – 2023), K9 (2018 – 2021)
LEXUS LS (1992 – 2006)
LINCOLN LS (2000 – 2006), Mark VIII (1993 – 1998), MKZ (2013 – 2020)
MASERATI Quattroporte (2003 – 2012)
MERCEDES-BENZ C-Class (2021 – 2022), C-Class AMG (2022 – 2023), CL-Class (1999 – 2006), CL-Class AMG (2001 – 2006), CLS-Class (2018 – 2023), E-Class (2013 – 2023), E-Class Cabriolet (2017 – 2023), E-Class Coupe (2017 – 2023), Marco Polo (2017 – 2021), Metris (2016 – 2023), S-Class (1998 – 2006), S-Class AMG (1999 – 2005), V-Class (2004 – 2023), Vito (2015 – 2021)
MERCURY Grand Marquis (2003 – 2007)
MITSUBISHI Proudia (1999 – 2001)
NISSAN 350Z (2002 – 2009), 370Z (2009 – 2023), Cima (2001 – 2010), Fairlady Z (2002 – 2023), Fuga (2004 – 2009), Maxima (2004 – 2023), Skyline (2003 – 2014), Z (2022 – 2023)
OPEL Astra GTC (2011 – 2018), Cabrio (2013 – 2019), Cascada (2013 – 2019), GT (2007 – 2009), Insignia (2008 – 2023), Insignia Country Tourer (2017 – 2019)
PEUGEOT 407 (2006 – 2010), 508 RXH (2012 – 2018)
PLYMOUTH Grand Voyager (1991 – 1995), Voyager (1987 – 1995)
PONTIAC G8 (2008 – 2009), Montana (1997 – 2005), Solstice (2006 – 2010), Trans Sport (1997 – 1999)
RENAULT Espace (2002 – 2014), Talisman (2015 – 2022), Vel Satis (2002 – 2009)
RENAULT SAMSUNG SM6 (2016 – 2022)
ROEWE 950 (2012 – 2017)
SAAB 9-5 (2010 – 2012)
SATURN Sky (2007 – 2010)
SEAT Ateca (2016 – 2023)
SSANGYONG Chairman (2004 – 2007)
SUBARU Baja (2002 – 2007), Crosstrek (2013 – 2017), Forester (2008 – 2013), Legacy (2015 – 2023), Legacy B4 (2014 – 2020), Liberty (2020 – 2021), Outback (2005 – 2009), XV (2012 – 2017), XV Crosstrek (2013 – 2017)
TOYOTA Celsior (2000 – 2006)
VAUXHALL Astra GTC (2011 – 2018), Cascada (2013 – 2018), Insignia (2008 – 2022)
VINFAST Lux A2.0 (2019 – 2022)
VOLKSWAGEN Arteon (2017 – 2023), Arteon SR (2022 – 2023), CC (2021 – 2023), Passat Alltrack (2016 – 2023), Passat Variant Alltrack (2016 – 2023), Phideon (2016 – 2023)
VOLVO S90 (2016 – 2023), V90 (2016 – 2023)
ZOTYE Z700 (2016 – 2020)

Replacement Tire Size
Replacement tires have to be within 3% of the total diameter of the original tires to ensure the vehicle’s performance and safety are not compromised.

Tire Size Overall Diameter Difference
285/35R18 25.9″ -3.00%
225/45R18 25.9″ -2.70%
335/30R18 25.9″ -2.70%
185/55R18 26.0″ -2.40%
145/70R18 26.0″ -2.40%
255/40R18 26.0″ -2.40%
205/50R18 26.1″ -2.10%
295/35R18 26.1″ -2.10%
345/30R18 26.2″ -1.80%
265/40R18 26.3″ -1.20%
235/45R18 26.3″ -1.20%
305/35R18 26.4″ -0.90%
135/80R18 26.5″ -0.60%
215/50R18 26.5″ -0.60%
155/70R18 26.6″ -0.30%
275/40R18 26.7″ 0.00%
315/35R18 26.7″ 0.00%
205/55R18 26.9″ 0.90%
225/50R18 26.9″ 0.90%
285/40R18 27.0″ 1.20%
325/35R18 27.0″ 1.20%
145/80R18 27.1″ 1.80%
165/70R18 27.1″ 1.80%
215/55R18 27.3″ 2.40%
295/40R18 27.3″ 2.40%
235/50R18 27.3″ 2.00%
265/45R18 27.4″ 2.70%

Our Observation
The 245/45R18 tire size is an excellent choice for individuals prioritizing balance in their driving experience. Its dimensions offer an optimal mix of performance, comfort, and economy.

While providing excellent road grip, it also maintains a comfortable ride quality due to its suitable sidewall height. The wide range of vehicles compatible with this tire size underscores its versatility.

However, like with any tire size, the specific driving experience will also depend on the tire brand, tread pattern, and rubber compound used. Therefore, it’s crucial to carefully consider these aspects before purchasing new tires.

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