What is the diameter of a P235/65R18 tire?

A P235/65R18 tire has an overall diameter of 30.03 inches (762.8mm).

How many revolutions per mile does a P235/65R18 tire make?

A P235/65R18 tire makes approximately 672 revolutions per mile.

What rim width is recommended for P235/65R18 tires?

The recommended wheel rim width for a P235/65R18 tire is 5.9" - 8.2".

P235/65R18

Passenger / P-Metric

Factory Specs, Physical Dimensions & Compatible Vehicle Applications

Factory Spec Overview

The P235/65R18 tire size features an overall diameter of 30.03 inches, a section width of 9.3 inches (235mm), and rotates 672 times per mile. It is a standard factory tire fitment on 145+ vehicle models including Cadillac SRX.

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Physical Dimensions & Specs

Overall Diameter

30.03"

762.8 mm

Section Width

235 mm

9.25" wide

Sidewall Height

6.01"

152.7 mm (65% aspect)

Revolutions / Mile

672

Circumference: 94.33"

Rim Diameter

18"

Wheel size

Recommended Rim Width

5.9" - 8.2"

Optimal rim width range

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Speedometer & Alternate Size Calculator

Testing an alternate size for your vehicle? Compare P235/65R18 against any proposed tire size below:

Popular Comparisons:

Tire 1 (Stock / Base)235/65R18

Section Width (mm)

Aspect Ratio (%)

Rim Diameter (in)

Wheel Width (in)

Offset ET (mm)

Overall Height:30.0"

Sidewall:6.0"

Revs/Mile:672

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

-1.5%At 60 mph reading, actual speed is 59.1 mph

Indicated	Actual Speed	Diff
20 mph	19.7 mph	-0.3 mph
30 mph	29.5 mph	-0.5 mph
45 mph	44.3 mph	-0.7 mph
60 mph	59.1 mph	-0.9 mph
75 mph	73.9 mph	-1.1 mph
90 mph	88.6 mph	-1.4 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:-0.23" lower ground clearance

Vehicles That Fit P235/65R18 (145+ Models)

Factory standard and optional vehicle fitments utilizing P235/65R18 tires:

Year	Make & Model	Trim / Variant	Lookup Specs
2010	Cadillac SRX	2.8 4	View 2010 SRX ›
2010	Cadillac SRX	3.0 Y, AWD	View 2010 SRX ›
2010	Cadillac SRX	3.0 Y, FWD	View 2010 SRX ›
2011	Cadillac SRX	2.8 6	View 2011 SRX ›
2011	Cadillac SRX	3.0 Y, AWD	View 2011 SRX ›
2011	Cadillac SRX	3.0 Y, FWD	View 2011 SRX ›
2012	Cadillac SRX	AWD	View 2012 SRX ›
2012	Cadillac SRX	FWD	View 2012 SRX ›
2013	Cadillac SRX	Luxury, AWD	View 2013 SRX ›
2013	Cadillac SRX	Luxury, FWD	View 2013 SRX ›
2013	Cadillac SRX	Base	View 2013 SRX ›
2014	Cadillac SRX	Base	View 2014 SRX ›
2014	Cadillac SRX	Luxury, AWD	View 2014 SRX ›
2014	Cadillac SRX	Luxury, FWD	View 2014 SRX ›
2015	Cadillac SRX	Base, 4D Utility	View 2015 SRX ›
2015	Cadillac SRX	Base, 4D Utility Wagon	View 2015 SRX ›
2015	Cadillac SRX	Luxury, 4D Utility Wagon, AWD	View 2015 SRX ›
2015	Cadillac SRX	Luxury, 4D Utility Wagon, FWD	View 2015 SRX ›
2015	Cadillac SRX	Luxury, 4D Utility, AWD	View 2015 SRX ›
2015	Cadillac SRX	Luxury, 4D Utility, FWD	View 2015 SRX ›
2016	Cadillac SRX	Luxury, FWD	View 2016 SRX ›
2016	Cadillac SRX	Luxury, AWD	View 2016 SRX ›
2016	Cadillac SRX	Base	View 2016 SRX ›
2007	Ford Explorer	4.0 E, 4WD	View 2007 Explorer ›
2007	Ford Explorer	4.0 E, RWD	View 2007 Explorer ›
2007	Ford Explorer	4.6 8, 4WD	View 2007 Explorer ›
2007	Ford Explorer	4.6 8, RWD	View 2007 Explorer ›
2007	Ford Explorer Sport Trac	4.0 K, 4WD	View 2007 Explorer Sport Trac ›
2007	Ford Explorer Sport Trac	4.0 K, RWD	View 2007 Explorer Sport Trac ›
2007	Ford Explorer Sport Trac	4.6 8, 4WD	View 2007 Explorer Sport Trac ›
2007	Ford Explorer Sport Trac	4.6 8, RWD	View 2007 Explorer Sport Trac ›
2008	Ford Explorer	4.0 E, AWD	View 2008 Explorer ›
2008	Ford Explorer	4.0 E, 4WD	View 2008 Explorer ›
2008	Ford Explorer	4.6 8, 4WD	View 2008 Explorer ›
2008	Ford Explorer	4.0 E, RWD	View 2008 Explorer ›
2008	Ford Explorer	4.6 8, RWD	View 2008 Explorer ›
2008	Ford Explorer	4.6 8, AWD	View 2008 Explorer ›
2008	Ford Explorer Sport Trac	4D Pickup Crew Cab, 4WD	View 2008 Explorer Sport Trac ›
2008	Ford Explorer Sport Trac	4D Pickup Crew Cab, RWD	View 2008 Explorer Sport Trac ›
2008	Ford Explorer Sport Trac	4D Utility Pickup, 4.0 E, 4WD	View 2008 Explorer Sport Trac ›
2008	Ford Explorer Sport Trac	4D Utility Pickup, 4.0 E, AWD	View 2008 Explorer Sport Trac ›
2008	Ford Explorer Sport Trac	4D Utility Pickup, 4.0 E, RWD	View 2008 Explorer Sport Trac ›
2008	Ford Explorer Sport Trac	4D Utility Pickup, 4.0 K, 4WD	View 2008 Explorer Sport Trac ›
2008	Ford Explorer Sport Trac	4D Utility Pickup, 4.0 K, AWD	View 2008 Explorer Sport Trac ›
2008	Ford Explorer Sport Trac	4D Utility Pickup, 4.0 K, RWD	View 2008 Explorer Sport Trac ›
2008	Ford Explorer Sport Trac	4D Utility Pickup, 4.6 8, 4WD	View 2008 Explorer Sport Trac ›
2008	Ford Explorer Sport Trac	4D Utility Pickup, 4.6 8, AWD	View 2008 Explorer Sport Trac ›
2008	Ford Explorer Sport Trac	4D Utility Pickup, 4.6 8, RWD	View 2008 Explorer Sport Trac ›
2009	Ford Explorer	4.0 E, 4WD	View 2009 Explorer ›
2009	Ford Explorer	4.0 E, AWD	View 2009 Explorer ›
2009	Ford Explorer	4.0 E, RWD	View 2009 Explorer ›
2009	Ford Explorer	4.6 8, 4WD	View 2009 Explorer ›
2009	Ford Explorer	4.6 8, AWD	View 2009 Explorer ›
2009	Ford Explorer	4.6 8, RWD	View 2009 Explorer ›
2009	Ford Explorer Sport Trac	4D Pickup Crew Cab	View 2009 Explorer Sport Trac ›
2009	Ford Explorer Sport Trac	4D Utility Pickup, 4.0 E, 4WD	View 2009 Explorer Sport Trac ›
2009	Ford Explorer Sport Trac	4D Utility Pickup, 4.0 E, AWD	View 2009 Explorer Sport Trac ›
2009	Ford Explorer Sport Trac	4D Utility Pickup, 4.0 E, RWD	View 2009 Explorer Sport Trac ›
2009	Ford Explorer Sport Trac	4D Utility Pickup, 4.6 8, 4WD	View 2009 Explorer Sport Trac ›
2009	Ford Explorer Sport Trac	4D Utility Pickup, 4.6 8, AWD	View 2009 Explorer Sport Trac ›
2009	Ford Explorer Sport Trac	4D Utility Pickup, 4.6 8, RWD	View 2009 Explorer Sport Trac ›
2010	Ford Explorer	4.0 E, 4WD	View 2010 Explorer ›
2010	Ford Explorer	4.0 E, AWD	View 2010 Explorer ›
2010	Ford Explorer	4.0 E, RWD	View 2010 Explorer ›
2010	Ford Explorer	4.6 8, 4WD	View 2010 Explorer ›
2010	Ford Explorer	4.6 8, AWD	View 2010 Explorer ›
2010	Ford Explorer	4.6 8, RWD	View 2010 Explorer ›
2010	Ford Explorer Sport Trac	4.0 E, 4WD	View 2010 Explorer Sport Trac ›
2010	Ford Explorer Sport Trac	4.0 E, AWD	View 2010 Explorer Sport Trac ›
2010	Ford Explorer Sport Trac	4.0 E, RWD	View 2010 Explorer Sport Trac ›
2010	Ford Explorer Sport Trac	4.6 8, 4WD	View 2010 Explorer Sport Trac ›
2010	Ford Explorer Sport Trac	4.6 8, AWD	View 2010 Explorer Sport Trac ›
2010	Ford Explorer Sport Trac	4.6 8, RWD	View 2010 Explorer Sport Trac ›
2008	Mercury Mountaineer	4.6 8, AWD	View 2008 Mountaineer ›
2008	Mercury Mountaineer	4.0 E, RWD	View 2008 Mountaineer ›
2008	Mercury Mountaineer	4.0 E, AWD	View 2008 Mountaineer ›
2008	Mercury Mountaineer	4.6 8, RWD	View 2008 Mountaineer ›
2009	Mercury Mountaineer	4.0 E, AWD	View 2009 Mountaineer ›
2009	Mercury Mountaineer	4.0 E, RWD	View 2009 Mountaineer ›
2009	Mercury Mountaineer	4.6 8, AWD	View 2009 Mountaineer ›
2009	Mercury Mountaineer	4.6 8, RWD	View 2009 Mountaineer ›
2010	Mercury Mountaineer	4.0 E, AWD	View 2010 Mountaineer ›
2010	Mercury Mountaineer	4.0 E, RWD	View 2010 Mountaineer ›
2010	Mercury Mountaineer	4.6 8, AWD	View 2010 Mountaineer ›
2010	Mercury Mountaineer	4.6 8, RWD	View 2010 Mountaineer ›
2003	Nissan Murano	SE, AWD	View 2003 Murano ›
2003	Nissan Murano	SE, FWD	View 2003 Murano ›
2003	Nissan Murano	SL, AWD	View 2003 Murano ›
2003	Nissan Murano	SL, FWD	View 2003 Murano ›
2004	Nissan Murano	SE, AWD	View 2004 Murano ›
2004	Nissan Murano	SE, FWD	View 2004 Murano ›
2004	Nissan Murano	SL, AWD	View 2004 Murano ›
2004	Nissan Murano	SL, FWD	View 2004 Murano ›
2005	Nissan Murano	S, AWD	View 2005 Murano ›
2005	Nissan Murano	S, FWD	View 2005 Murano ›
2005	Nissan Murano	SE, AWD	View 2005 Murano ›
2005	Nissan Murano	SE, FWD	View 2005 Murano ›
2005	Nissan Murano	SL, AWD	View 2005 Murano ›
2005	Nissan Murano	SL, FWD	View 2005 Murano ›
2006	Nissan Murano	S, AWD	View 2006 Murano ›
2006	Nissan Murano	S, FWD	View 2006 Murano ›
2006	Nissan Murano	SE	View 2006 Murano ›
2006	Nissan Murano	SL, AWD	View 2006 Murano ›
2006	Nissan Murano	SL, FWD	View 2006 Murano ›
2007	Nissan Murano	S, AWD	View 2007 Murano ›
2007	Nissan Murano	S, FWD	View 2007 Murano ›
2007	Nissan Murano	SE	View 2007 Murano ›
2007	Nissan Murano	SL, AWD	View 2007 Murano ›
2007	Nissan Murano	SL, FWD	View 2007 Murano ›
2009	Nissan Murano	S, AWD	View 2009 Murano ›
2009	Nissan Murano	S, FWD	View 2009 Murano ›
2009	Nissan Murano	SL, AWD	View 2009 Murano ›
2009	Nissan Murano	SL, FWD	View 2009 Murano ›
2010	Nissan Murano	S, AWD	View 2010 Murano ›
2010	Nissan Murano	S, FWD	View 2010 Murano ›
2010	Nissan Murano	SL, AWD	View 2010 Murano ›
2010	Nissan Murano	SL, FWD	View 2010 Murano ›
2011	Nissan Murano	S, AWD	View 2011 Murano ›
2011	Nissan Murano	S, FWD	View 2011 Murano ›
2011	Nissan Murano	SL, AWD	View 2011 Murano ›
2011	Nissan Murano	SL, FWD	View 2011 Murano ›
2011	Nissan Murano	SV, AWD	View 2011 Murano ›
2011	Nissan Murano	SV, FWD	View 2011 Murano ›
2012	Nissan Murano	S, AWD	View 2012 Murano ›
2012	Nissan Murano	SL, AWD	View 2012 Murano ›
2012	Nissan Murano	SL, FWD	View 2012 Murano ›
2012	Nissan Murano	SV, AWD	View 2012 Murano ›
2012	Nissan Murano	S, FWD	View 2012 Murano ›
2012	Nissan Murano	SV, FWD	View 2012 Murano ›
2013	Nissan Murano	S, AWD	View 2013 Murano ›
2013	Nissan Murano	SL, FWD	View 2013 Murano ›
2013	Nissan Murano	SV, AWD	View 2013 Murano ›
2013	Nissan Murano	SV, FWD	View 2013 Murano ›
2013	Nissan Murano	S, FWD	View 2013 Murano ›
2013	Nissan Murano	SL, AWD	View 2013 Murano ›
2014	Nissan Murano	S, AWD	View 2014 Murano ›
2014	Nissan Murano	S, FWD	View 2014 Murano ›
2014	Nissan Murano	SL, AWD	View 2014 Murano ›
2014	Nissan Murano	SL, FWD	View 2014 Murano ›
2014	Nissan Murano	SV, AWD	View 2014 Murano ›
2014	Nissan Murano	SV, FWD	View 2014 Murano ›
2011	Saab 9-4X	3.0i Premium, AWD	View 2011 9-4X ›
2011	Saab 9-4X	3.0i, AWD	View 2011 9-4X ›
2011	Saab 9-4X	3.0i Premium, FWD	View 2011 9-4X ›
2011	Saab 9-4X	3.0i, FWD	View 2011 9-4X ›