What is the diameter of a P225/55R18 tire?

A P225/55R18 tire has an overall diameter of 27.74 inches (704.6mm).

How many revolutions per mile does a P225/55R18 tire make?

A P225/55R18 tire makes approximately 727 revolutions per mile.

What rim width is recommended for P225/55R18 tires?

The recommended wheel rim width for a P225/55R18 tire is 5.6" - 7.9".

P225/55R18

Passenger / P-Metric

Factory Specs, Physical Dimensions & Compatible Vehicle Applications

Factory Spec Overview

The P225/55R18 tire size features an overall diameter of 27.74 inches, a section width of 8.9 inches (225mm), and rotates 727 times per mile. It is a standard factory tire fitment on 150+ vehicle models including Ford Five Hundred.

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Physical Dimensions & Specs

Overall Diameter

27.74"

704.6 mm

Section Width

225 mm

8.86" wide

Sidewall Height

4.87"

123.7 mm (55% aspect)

Revolutions / Mile

727

Circumference: 87.16"

Rim Diameter

18"

Wheel size

Recommended Rim Width

5.6" - 7.9"

Optimal rim width range

Where to Buy & Install P225/55R18 Tires

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Speedometer & Alternate Size Calculator

Testing an alternate size for your vehicle? Compare P225/55R18 against any proposed tire size below:

Popular Comparisons:

Tire 1 (Stock / Base)225/55R18

Section Width (mm)

Aspect Ratio (%)

Rim Diameter (in)

Wheel Width (in)

Offset ET (mm)

Overall Height:27.7"

Sidewall:4.9"

Revs/Mile:727

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

+6.6%At 60 mph reading, actual speed is 64.0 mph

Indicated	Actual Speed	Diff
20 mph	21.3 mph	+1.3 mph
30 mph	32.0 mph	+2.0 mph
45 mph	48.0 mph	+3.0 mph
60 mph	64.0 mph	+4.0 mph
75 mph	79.9 mph	+4.9 mph
90 mph	95.9 mph	+5.9 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:+0.92" ground clearance

Vehicles That Fit P225/55R18 (150+ Models)

Factory standard and optional vehicle fitments utilizing P225/55R18 tires:

Year	Make & Model	Trim / Variant	Lookup Specs
2005	Ford Five Hundred	Limited, AWD	View 2005 Five Hundred ›
2005	Ford Five Hundred	Limited, FWD	View 2005 Five Hundred ›
2006	Ford Five Hundred	Limited, AWD	View 2006 Five Hundred ›
2006	Ford Five Hundred	Limited, FWD	View 2006 Five Hundred ›
2007	Ford Five Hundred	Limited, AWD	View 2007 Five Hundred ›
2007	Ford Five Hundred	Limited, FWD	View 2007 Five Hundred ›
2008	Ford Taurus	Limited, AWD	View 2008 Taurus ›
2008	Ford Taurus	Limited, FWD	View 2008 Taurus ›
2009	Ford Taurus	Limited, AWD	View 2009 Taurus ›
2009	Ford Taurus	Limited, FWD	View 2009 Taurus ›
2007	Honda Element	SC, Automatic	View 2007 Element ›
2007	Honda Element	SC, Standard	View 2007 Element ›
2008	Honda Element	SC, Automatic	View 2008 Element ›
2008	Honda Element	SC, Standard	View 2008 Element ›
2009	Honda Element	SC, Automatic	View 2009 Element ›
2009	Honda Element	SC, Standard	View 2009 Element ›
2010	Honda Element	SC, Automatic	View 2010 Element ›
2010	Honda Element	SC, Standard	View 2010 Element ›
2011	Infiniti EX35	Base, AWD	View 2011 EX35 ›
2011	Infiniti EX35	Base, RWD	View 2011 EX35 ›
2011	Infiniti EX35	Journey, AWD	View 2011 EX35 ›
2011	Infiniti EX35	Journey, RWD	View 2011 EX35 ›
2012	Infiniti EX35	Base, AWD	View 2012 EX35 ›
2012	Infiniti EX35	Journey, AWD	View 2012 EX35 ›
2012	Infiniti EX35	Journey, RWD	View 2012 EX35 ›
2012	Infiniti EX35	Base, RWD	View 2012 EX35 ›
2013	Infiniti EX37	Base, AWD	View 2013 EX37 ›
2013	Infiniti EX37	Journey, AWD	View 2013 EX37 ›
2013	Infiniti EX37	Base, RWD	View 2013 EX37 ›
2013	Infiniti EX37	Journey, RWD	View 2013 EX37 ›
2014	Infiniti QX50	Base, RWD	View 2014 QX50 ›
2014	Infiniti QX50	Base, AWD	View 2014 QX50 ›
2014	Infiniti QX50	Journey, AWD	View 2014 QX50 ›
2014	Infiniti QX50	Journey, RWD	View 2014 QX50 ›
2015	Infiniti QX50	Base, AWD	View 2015 QX50 ›
2015	Infiniti QX50	Base, RWD	View 2015 QX50 ›
2015	Infiniti QX50	Journey, AWD	View 2015 QX50 ›
2015	Infiniti QX50	Journey, RWD	View 2015 QX50 ›
2016	Infiniti QX50	AWD	View 2016 QX50 ›
2016	Infiniti QX50	RWD	View 2016 QX50 ›
2017	Infiniti QX50	AWD	View 2017 QX50 ›
2017	Infiniti QX50	RWD	View 2017 QX50 ›
2005	Mercury Montego	Premier, AWD	View 2005 Montego ›
2005	Mercury Montego	Premier, FWD	View 2005 Montego ›
2006	Mercury Montego	Premier, AWD	View 2006 Montego ›
2006	Mercury Montego	Premier, FWD	View 2006 Montego ›
2007	Mercury Montego	Premier, AWD	View 2007 Montego ›
2007	Mercury Montego	Premier, FWD	View 2007 Montego ›
2008	Mercury Sable	Premier, AWD	View 2008 Sable ›
2008	Mercury Sable	Premier, FWD	View 2008 Sable ›
2009	Mercury Sable	Premier, AWD	View 2009 Sable ›
2009	Mercury Sable	Premier, FWD	View 2009 Sable ›
2007	Mitsubishi Outlander	XLS, AWD	View 2007 Outlander ›
2007	Mitsubishi Outlander	XLS, FWD	View 2007 Outlander ›
2008	Mitsubishi Outlander	SE, AWD	View 2008 Outlander ›
2008	Mitsubishi Outlander	SE, FWD	View 2008 Outlander ›
2008	Mitsubishi Outlander	XLS, AWD	View 2008 Outlander ›
2008	Mitsubishi Outlander	XLS, FWD	View 2008 Outlander ›
2009	Mitsubishi Outlander	SE, AWD	View 2009 Outlander ›
2009	Mitsubishi Outlander	SE, FWD	View 2009 Outlander ›
2009	Mitsubishi Outlander	XLS, AWD	View 2009 Outlander ›
2009	Mitsubishi Outlander	XLS, FWD	View 2009 Outlander ›
2010	Mitsubishi Outlander	GT	View 2010 Outlander ›
2010	Mitsubishi Outlander	SE, AWD	View 2010 Outlander ›
2010	Mitsubishi Outlander	SE, FWD	View 2010 Outlander ›
2010	Mitsubishi Outlander	XLS, AWD	View 2010 Outlander ›
2010	Mitsubishi Outlander	XLS, FWD	View 2010 Outlander ›
2011	Mitsubishi Outlander	GT	View 2011 Outlander ›
2011	Mitsubishi Outlander	SE, AWD	View 2011 Outlander ›
2011	Mitsubishi Outlander	SE, FWD	View 2011 Outlander ›
2011	Mitsubishi Outlander	XLS, AWD	View 2011 Outlander ›
2011	Mitsubishi Outlander	XLS, FWD	View 2011 Outlander ›
2011	Mitsubishi Outlander Sport	SE, AWD	View 2011 Outlander Sport ›
2011	Mitsubishi Outlander Sport	SE, FWD	View 2011 Outlander Sport ›
2012	Mitsubishi Outlander	GT, AWD	View 2012 Outlander ›
2012	Mitsubishi Outlander	GT, FWD	View 2012 Outlander ›
2012	Mitsubishi Outlander Sport	SE, FWD	View 2012 Outlander Sport ›
2012	Mitsubishi Outlander Sport	SE, AWD	View 2012 Outlander Sport ›
2012	Mitsubishi Outlander	SE, AWD	View 2012 Outlander ›
2012	Mitsubishi Outlander	SE, FWD	View 2012 Outlander ›
2013	Mitsubishi Outlander Sport	LE, FWD	View 2013 Outlander Sport ›
2013	Mitsubishi Outlander Sport	ES, FWD, Automatic CVT Trans	View 2013 Outlander Sport ›
2013	Mitsubishi Outlander	SE, AWD	View 2013 Outlander ›
2013	Mitsubishi Outlander Sport	ES, FWD, Standard Trans	View 2013 Outlander Sport ›
2013	Mitsubishi Outlander	SE, FWD	View 2013 Outlander ›
2013	Mitsubishi Outlander	GT, AWD	View 2013 Outlander ›
2013	Mitsubishi Outlander Sport	ES, AWD	View 2013 Outlander Sport ›
2013	Mitsubishi Outlander Sport	LE, AWD	View 2013 Outlander Sport ›
2013	Mitsubishi Outlander Sport	SE, FWD	View 2013 Outlander Sport ›
2013	Mitsubishi Outlander	GT, FWD	View 2013 Outlander ›
2013	Mitsubishi Outlander Sport	SE, AWD	View 2013 Outlander Sport ›
2014	Mitsubishi Outlander	SE, FWD	View 2014 Outlander ›
2014	Mitsubishi Outlander	SE, AWD	View 2014 Outlander ›
2014	Mitsubishi Outlander	GT	View 2014 Outlander ›
2014	Mitsubishi Outlander Sport	ES, FWD, Standard Trans	View 2014 Outlander Sport ›
2014	Mitsubishi Outlander Sport	ES, FWD, Automatic CVT Trans	View 2014 Outlander Sport ›
2014	Mitsubishi Outlander Sport	SE, AWD	View 2014 Outlander Sport ›
2014	Mitsubishi Outlander Sport	ES, AWD	View 2014 Outlander Sport ›
2014	Mitsubishi Outlander Sport	SE, FWD	View 2014 Outlander Sport ›
2015	Mitsubishi Outlander	GT	View 2015 Outlander ›
2015	Mitsubishi Outlander Sport	ES, 2.0L Eng VIN U, AWD	View 2015 Outlander Sport ›
2015	Mitsubishi Outlander	SE, FWD	View 2015 Outlander ›
2015	Mitsubishi Outlander Sport	ES, 2.0L Eng VIN U, FWD, Automatic CVT Trans	View 2015 Outlander Sport ›
2015	Mitsubishi Outlander	SE, AWD	View 2015 Outlander ›
2015	Mitsubishi Outlander Sport	ES, 2.0L Eng VIN U, FWD, Standard Trans	View 2015 Outlander Sport ›
2015	Mitsubishi Outlander Sport	SE, AWD	View 2015 Outlander Sport ›
2015	Mitsubishi Outlander Sport	ES, 2.4L Eng VIN W, FWD	View 2015 Outlander Sport ›
2015	Mitsubishi Outlander Sport	SE, FWD	View 2015 Outlander Sport ›
2015	Mitsubishi Outlander Sport	ES, 2.4L Eng VIN W, AWD	View 2015 Outlander Sport ›
2015	Mitsubishi Outlander Sport	GT, AWD	View 2015 Outlander Sport ›
2015	Mitsubishi Outlander Sport	GT, FWD	View 2015 Outlander Sport ›
2016	Mitsubishi Outlander	ES	View 2016 Outlander ›
2016	Mitsubishi Outlander	GT	View 2016 Outlander ›
2016	Mitsubishi Outlander Sport	SE, FWD	View 2016 Outlander Sport ›
2016	Mitsubishi Outlander Sport	ES, 2.4L Eng VIN W, AWD	View 2016 Outlander Sport ›
2016	Mitsubishi Outlander	SE, AWD	View 2016 Outlander ›
2016	Mitsubishi Outlander Sport	GT, AWD	View 2016 Outlander Sport ›
2016	Mitsubishi Outlander Sport	SEL, AWD	View 2016 Outlander Sport ›
2016	Mitsubishi Outlander Sport	SE, AWD	View 2016 Outlander Sport ›
2016	Mitsubishi Outlander	SEL, FWD	View 2016 Outlander ›
2016	Mitsubishi Outlander	SE, FWD	View 2016 Outlander ›
2016	Mitsubishi Outlander Sport	SEL, FWD	View 2016 Outlander Sport ›
2016	Mitsubishi Outlander Sport	GT, FWD	View 2016 Outlander Sport ›
2016	Mitsubishi Outlander Sport	ES, 2.0L Eng VIN U, AWD	View 2016 Outlander Sport ›
2016	Mitsubishi Outlander	SEL, AWD	View 2016 Outlander ›
2016	Mitsubishi Outlander Sport	ES, 2.0L Eng VIN U, FWD, Automatic CVT Trans	View 2016 Outlander Sport ›
2016	Mitsubishi Outlander Sport	ES, 2.4L Eng VIN W, FWD	View 2016 Outlander Sport ›
2016	Mitsubishi Outlander Sport	ES, 2.0L Eng VIN U, FWD, Standard Trans	View 2016 Outlander Sport ›
2017	Mitsubishi Outlander	SE, AWD	View 2017 Outlander ›
2017	Mitsubishi Outlander	ES, AWD	View 2017 Outlander ›
2017	Mitsubishi Outlander	ES, FWD	View 2017 Outlander ›
2017	Mitsubishi Outlander	GT	View 2017 Outlander ›
2017	Mitsubishi Outlander Sport	ES, AWD	View 2017 Outlander Sport ›
2017	Mitsubishi Outlander Sport	ES, FWD, Automatic CVT Trans	View 2017 Outlander Sport ›
2017	Mitsubishi Outlander	SEL, FWD	View 2017 Outlander ›
2017	Mitsubishi Outlander Sport	ES, FWD, Standard Trans	View 2017 Outlander Sport ›
2017	Mitsubishi Outlander	SEL, AWD	View 2017 Outlander ›
2017	Mitsubishi Outlander Sport	GT	View 2017 Outlander Sport ›
2017	Mitsubishi Outlander Sport	SE, FWD	View 2017 Outlander Sport ›
2017	Mitsubishi Outlander Sport	SE, AWD	View 2017 Outlander Sport ›
2017	Mitsubishi Outlander Sport	SEL, FWD	View 2017 Outlander Sport ›
2017	Mitsubishi Outlander	SE, FWD	View 2017 Outlander ›
2017	Mitsubishi Outlander Sport	SEL, AWD	View 2017 Outlander Sport ›
2018	Mitsubishi Eclipse Cross	SE	View 2018 Eclipse Cross ›
2018	Mitsubishi Eclipse Cross	SEL	View 2018 Eclipse Cross ›
2018	Mitsubishi Outlander	SE, FWD	View 2018 Outlander ›
2018	Mitsubishi Eclipse Cross	LE	View 2018 Eclipse Cross ›
2018	Mitsubishi Outlander	ES, FWD	View 2018 Outlander ›
2018	Mitsubishi Outlander	GT	View 2018 Outlander ›
2018	Mitsubishi Outlander Sport	ES, AWD	View 2018 Outlander Sport ›