What is the diameter of a P235/45R18 tire?

A P235/45R18 tire has an overall diameter of 26.33 inches (668.8mm).

How many revolutions per mile does a P235/45R18 tire make?

A P235/45R18 tire makes approximately 766 revolutions per mile.

What rim width is recommended for P235/45R18 tires?

The recommended wheel rim width for a P235/45R18 tire is 5.9" - 8.2".

P235/45R18

Passenger / P-Metric

Factory Specs, Physical Dimensions & Compatible Vehicle Applications

Factory Spec Overview

The P235/45R18 tire size features an overall diameter of 26.33 inches, a section width of 9.3 inches (235mm), and rotates 766 times per mile. It is a standard factory tire fitment on 150+ vehicle models including Acura TSX.

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Physical Dimensions & Specs

Overall Diameter

26.33"

668.8 mm

Section Width

235 mm

9.25" wide

Sidewall Height

4.16"

105.7 mm (45% aspect)

Revolutions / Mile

766

Circumference: 82.71"

Rim Diameter

18"

Wheel size

Recommended Rim Width

5.9" - 8.2"

Optimal rim width range

Speedometer & Alternate Size Calculator

Testing an alternate size for your vehicle? Compare P235/45R18 against any proposed tire size below:

Popular Comparisons:

Tire 1 (Stock / Base)235/45R18

Section Width (mm)

Aspect Ratio (%)

Rim Diameter (in)

Wheel Width (in)

Offset ET (mm)

Overall Height:26.3"

Sidewall:4.2"

Revs/Mile:766

Tire 2 (New / Compare)245/60R18

Section Width (mm)

Aspect Ratio (%)

Rim Diameter (in)

Wheel Width (in)

Offset ET (mm)

Overall Height:29.6"

Sidewall:5.8"

Revs/Mile:682

Visual Tire & Wheel Comparison

Speedometer Variance

+12.3%At 60 mph reading, actual speed is 67.4 mph

Indicated	Actual Speed	Diff
20 mph	22.5 mph	+2.5 mph
30 mph	33.7 mph	+3.7 mph
45 mph	50.6 mph	+5.6 mph
60 mph	67.4 mph	+7.4 mph
75 mph	84.3 mph	+9.3 mph
90 mph	101.1 mph	+11.1 mph

Fender & Suspension Clearance

Fitment Status: MODERATE RISK

Flush fitment. Extends 17.7mm outwards. Check wheel arch clearance under full suspension compression.

Inner Strut Space:7.7mm LESS clearance

Outer Fender Push:Extends 17.7mm further out

Ride Height Delta:+1.62" ground clearance

Vehicles That Fit P235/45R18 (150+ Models)

Factory standard and optional vehicle fitments utilizing P235/45R18 tires:

Year	Make & Model	Trim / Variant	Lookup Specs
2010	Acura TSX	3.5 4	View 2010 TSX ›
2011	Acura TSX	4D Sedan, 3.5 4	View 2011 TSX ›
2012	Acura TSX	4D Sedan, 3.5L Eng VIN 4	View 2012 TSX ›
2013	Acura TSX	4D Sedan, 3.5L Eng VIN 4	View 2013 TSX ›
2014	Acura TSX	V6	View 2014 TSX ›
2012	Buick Verano	Verano	View 2012 Verano ›
2013	Buick Verano	Base	View 2013 Verano ›
2013	Buick Verano	Convenience	View 2013 Verano ›
2013	Buick Verano	Leather	View 2013 Verano ›
2013	Buick Verano	Premium, Automatic Trans	View 2013 Verano ›
2013	Buick Verano	Premium, Standard Trans	View 2013 Verano ›
2014	Buick Verano	Base	View 2014 Verano ›
2014	Buick Verano	Leather, 2.0L Eng VIN V	View 2014 Verano ›
2014	Buick Verano	Convenience	View 2014 Verano ›
2014	Buick Verano	Premium, Automatic Trans	View 2014 Verano ›
2014	Buick Verano	Leather, 2.4L Eng VIN K	View 2014 Verano ›
2014	Buick Verano	Premium, Standard Trans	View 2014 Verano ›
2015	Buick Verano	Convenience	View 2015 Verano ›
2015	Buick Verano	Leather	View 2015 Verano ›
2015	Buick Verano	Premium, Automatic Trans	View 2015 Verano ›
2015	Buick Verano	Premium, Standard Trans	View 2015 Verano ›
2016	Buick Verano	Convenience, Gas	View 2016 Verano ›
2016	Buick Verano	Convenience, Gas/Ethanol	View 2016 Verano ›
2016	Buick Verano	Leather, Gas	View 2016 Verano ›
2016	Buick Verano	Leather, Gas/Ethanol	View 2016 Verano ›
2016	Buick Verano	Premium, Automatic Trans	View 2016 Verano ›
2016	Buick Verano	Premium, Standard Trans	View 2016 Verano ›
2016	Buick Verano	Sport Touring, Gas	View 2016 Verano ›
2016	Buick Verano	Sport Touring, Gas/Ethanol	View 2016 Verano ›
2017	Buick Verano	Leather, Gas	View 2017 Verano ›
2017	Buick Verano	Leather, Gas/Ethanol	View 2017 Verano ›
2017	Buick Verano	Sport Touring, Gas	View 2017 Verano ›
2017	Buick Verano	Sport Touring, Gas/Ethanol	View 2017 Verano ›
2005	Ford GT	GT	View 2005 GT ›
2006	Ford GT	GT	View 2006 GT ›
2008	Honda Accord	EX, 2D Coupe, 3.5 CS2, J35Z2, Automatic	View 2008 Accord ›
2008	Honda Accord	EX, 2D Coupe, 3.5 CS2, J35Z2, Standard	View 2008 Accord ›
2008	Honda Accord	EX, 2D Coupe, 3.5 CS2, J35Z3, Automatic	View 2008 Accord ›
2008	Honda Accord	EX, 2D Coupe, 3.5 CS2, J35Z3, Standard	View 2008 Accord ›
2009	Honda Accord	EX, 2D Coupe, 3.5 CS2, J35Z2, Automatic	View 2009 Accord ›
2009	Honda Accord	EX, 2D Coupe, 3.5 CS2, J35Z2, Standard	View 2009 Accord ›
2009	Honda Accord	EX, 2D Coupe, 3.5 CS2, J35Z3, Automatic	View 2009 Accord ›
2009	Honda Accord	EX, 2D Coupe, 3.5 CS2, J35Z3, Standard	View 2009 Accord ›
2010	Honda Accord	EX, 2D Coupe, 3.5 CS2, J35Z2, Automatic	View 2010 Accord ›
2010	Honda Accord	EX, 2D Coupe, 3.5 CS2, J35Z2, Standard	View 2010 Accord ›
2010	Honda Accord	EX, 2D Coupe, 3.5 CS2, J35Z3, Automatic	View 2010 Accord ›
2010	Honda Accord	EX, 2D Coupe, 3.5 CS2, J35Z3, Standard	View 2010 Accord ›
2011	Honda Accord	EX, 2D Coupe, 3.5 CS2, J35Z2, Standard	View 2011 Accord ›
2011	Honda Accord	EX, 2D Coupe, 3.5 CS2, J35Z3, Automatic	View 2011 Accord ›
2011	Honda Accord	EX, 2D Coupe, 3.5 CS2, J35Z2, Automatic	View 2011 Accord ›
2011	Honda Accord	EX, 2D Coupe, 3.5 CS2, J35Z3, Standard	View 2011 Accord ›
2012	Honda Accord	EX, 2D Coupe, 3.5L Eng VIN CS2, Eng CD J35Z2	View 2012 Accord ›
2012	Honda Accord	EX, 2D Coupe, 3.5L Eng VIN CS2, Eng CD J35Z3	View 2012 Accord ›
2012	Honda Accord	EX, 4D Sedan, 3.5L Eng VIN CP3	View 2012 Accord ›
2012	Kia Soul	!	View 2012 Soul ›
2012	Kia Soul	+, Automatic	View 2012 Soul ›
2013	Kia Soul	!	View 2013 Soul ›
2015	Lexus RC 350	Base, AWD	View 2015 RC 350 ›
2016	Lexus GS 350	Base, AWD	View 2016 GS 350 ›
2016	Lexus GS 350	Base, RWD	View 2016 GS 350 ›
2016	Lexus RC 300	Base	View 2016 RC 300 ›
2016	Lexus RC 350	Base, AWD	View 2016 RC 350 ›
2017	Lexus GS 350	Base, RWD	View 2017 GS 350 ›
2017	Lexus GS 350	Base, AWD	View 2017 GS 350 ›
2017	Lexus RC 350	Base, AWD	View 2017 RC 350 ›
2017	Lexus RC 300	Base	View 2017 RC 300 ›
2018	Lexus GS 300	Base	View 2018 GS 300 ›
2018	Lexus GS 350	Base, AWD	View 2018 GS 350 ›
2018	Lexus GS 350	Base, RWD	View 2018 GS 350 ›
2018	Lexus RC 350	Base, AWD	View 2018 RC 350 ›
2018	Lexus RC 300	Base, 3.5L Eng VIN 8	View 2018 RC 300 ›
2019	Lexus GS 350	Base, AWD	View 2019 GS 350 ›
2019	Lexus GS 350	Base, RWD	View 2019 GS 350 ›
2019	Lexus RC 300	Base, 3.5L Eng VIN 8	View 2019 RC 300 ›
2019	Lexus RC 350	Base, AWD	View 2019 RC 350 ›
2020	Lexus GS 350	Base, RWD	View 2020 GS 350 ›
2020	Lexus GS 350	Base, AWD	View 2020 GS 350 ›
2020	Lexus RC 350	Base, AWD	View 2020 RC 350 ›
2020	Lexus RC 300	Base, 3.5L Eng VIN 8	View 2020 RC 300 ›
2021	Lexus RC 350	Base, AWD	View 2021 RC 350 ›
2022	Lexus RC 350	Base, AWD	View 2022 RC 350 ›
2009	Mazda 6	s Touring	View 2009 6 ›
2009	Mazda 6	s Grand Touring	View 2009 6 ›
2009	Mazda 6	s Sport	View 2009 6 ›
2010	Mazda 6	s Grand Touring	View 2010 6 ›
2010	Mazda 6	s Touring Plus	View 2010 6 ›
2011	Mazda 6	s Touring Plus	View 2011 6 ›
2011	Mazda 6	s Grand Touring	View 2011 6 ›
2012	Mazda 6	s Grand Touring	View 2012 6 ›
2012	Mazda 6	s Touring Plus	View 2012 6 ›
2013	Mazda 6	i Grand Touring	View 2013 6 ›
2013	Mazda 6	i Sport, Standard Trans	View 2013 6 ›
2013	Mazda 6	i Touring	View 2013 6 ›
2013	Mazda 6	i Touring Plus	View 2013 6 ›
2013	Mazda 6	s Grand Touring	View 2013 6 ›
2013	Mazda 6	i Sport, Automatic Trans	View 2013 6 ›
2006	Mitsubishi Eclipse	GT, Standard	View 2006 Eclipse ›
2006	Mitsubishi Eclipse	GT, Automatic	View 2006 Eclipse ›
2007	Mitsubishi Eclipse	GT, Automatic	View 2007 Eclipse ›
2007	Mitsubishi Eclipse	GT, Standard	View 2007 Eclipse ›
2007	Mitsubishi Eclipse	Spyder GT, Standard	View 2007 Eclipse ›
2007	Mitsubishi Eclipse	Spyder GT, Automatic	View 2007 Eclipse ›
2007	Mitsubishi Galant	Ralliart	View 2007 Galant ›
2008	Mitsubishi Eclipse	GT, Automatic	View 2008 Eclipse ›
2008	Mitsubishi Eclipse	SE, 2.4 F, Automatic	View 2008 Eclipse ›
2008	Mitsubishi Eclipse	GT, Standard	View 2008 Eclipse ›
2008	Mitsubishi Eclipse	SE, 2.4 F, Standard	View 2008 Eclipse ›
2008	Mitsubishi Eclipse	SE, 3.8 T, Standard	View 2008 Eclipse ›
2008	Mitsubishi Eclipse	SE, 3.8 T, Automatic	View 2008 Eclipse ›
2008	Mitsubishi Eclipse	Spyder GT, Standard	View 2008 Eclipse ›
2008	Mitsubishi Galant	Ralliart	View 2008 Galant ›
2008	Mitsubishi Eclipse	Spyder GT, Automatic	View 2008 Eclipse ›
2009	Mitsubishi Eclipse	GT, Standard	View 2009 Eclipse ›
2009	Mitsubishi Eclipse	GT, Automatic	View 2009 Eclipse ›
2009	Mitsubishi Eclipse	Spyder GT, Standard	View 2009 Eclipse ›
2009	Mitsubishi Eclipse	Spyder GT, Automatic	View 2009 Eclipse ›
2009	Mitsubishi Galant	Ralliart	View 2009 Galant ›
2010	Mitsubishi Eclipse	GS Sport	View 2010 Eclipse ›
2010	Mitsubishi Eclipse	GT, Standard	View 2010 Eclipse ›
2010	Mitsubishi Eclipse	GT, Automatic	View 2010 Eclipse ›
2010	Mitsubishi Eclipse	Spyder GT, Automatic	View 2010 Eclipse ›
2010	Mitsubishi Eclipse	Spyder GT, Standard	View 2010 Eclipse ›
2010	Mitsubishi Galant	SE	View 2010 Galant ›
2011	Mitsubishi Eclipse	GS Sport	View 2011 Eclipse ›
2011	Mitsubishi Eclipse	GS, Automatic	View 2011 Eclipse ›
2011	Mitsubishi Eclipse	GS, Standard	View 2011 Eclipse ›
2011	Mitsubishi Eclipse	Spyder GS Sport	View 2011 Eclipse ›
2011	Mitsubishi Eclipse	GT	View 2011 Eclipse ›
2011	Mitsubishi Eclipse	Spyder GT	View 2011 Eclipse ›
2011	Mitsubishi Galant	SE	View 2011 Galant ›
2012	Mitsubishi Eclipse	GS Sport	View 2012 Eclipse ›
2012	Mitsubishi Eclipse	GS, Standard Trans	View 2012 Eclipse ›
2012	Mitsubishi Eclipse	GS, Automatic Trans	View 2012 Eclipse ›
2012	Mitsubishi Eclipse	Spyder SE	View 2012 Eclipse ›
2012	Mitsubishi Galant	SE	View 2012 Galant ›
2012	Mitsubishi Eclipse	Spyder GS Sport	View 2012 Eclipse ›
2012	Mitsubishi Eclipse	GT	View 2012 Eclipse ›
2012	Mitsubishi Eclipse	SE	View 2012 Eclipse ›
2012	Mitsubishi Eclipse	Spyder GT	View 2012 Eclipse ›
2010	Nissan Altima	SR, 2D Coupe, Automatic CVT	View 2010 Altima ›
2010	Nissan Altima	SR, 2D Coupe, Standard	View 2010 Altima ›
2011	Nissan Altima	SR, 2D Coupe, Standard	View 2011 Altima ›
2011	Nissan Altima	SR, 2D Coupe, Automatic CVT	View 2011 Altima ›
2012	Nissan Altima	SR, 2D Coupe, Automatic CVT Trans	View 2012 Altima ›
2012	Nissan Altima	SR, 2D Coupe, Standard Trans	View 2012 Altima ›
2013	Nissan Altima	SV, 3.5L Eng VIN B	View 2013 Altima ›
2013	Nissan Altima	SL, 3.5L Eng VIN B	View 2013 Altima ›
2013	Nissan Altima	S, 4D Sedan, 3.5L Eng VIN B	View 2013 Altima ›
2014	Nissan Altima	SV, 3.5L Eng VIN B	View 2014 Altima ›
2014	Nissan Altima	SL, 3.5L Eng VIN B	View 2014 Altima ›