What is the diameter of a P225/50R18 tire?

A P225/50R18 tire has an overall diameter of 26.86 inches (682.2mm).

How many revolutions per mile does a P225/50R18 tire make?

A P225/50R18 tire makes approximately 751 revolutions per mile.

What rim width is recommended for P225/50R18 tires?

The recommended wheel rim width for a P225/50R18 tire is 5.6" - 7.9".

P225/50R18

Passenger / P-Metric

Factory Specs, Physical Dimensions & Compatible Vehicle Applications

Factory Spec Overview

The P225/50R18 tire size features an overall diameter of 26.86 inches, a section width of 8.9 inches (225mm), and rotates 751 times per mile. It is a standard factory tire fitment on 132+ vehicle models including Chevrolet Malibu.

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Physical Dimensions & Specs

Overall Diameter

26.86"

682.2 mm

Section Width

225 mm

8.86" wide

Sidewall Height

4.43"

112.5 mm (50% aspect)

Revolutions / Mile

751

Circumference: 84.38"

Rim Diameter

18"

Wheel size

Recommended Rim Width

5.6" - 7.9"

Optimal rim width range

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Speedometer & Alternate Size Calculator

Testing an alternate size for your vehicle? Compare P225/50R18 against any proposed tire size below:

Popular Comparisons:

Tire 1 (Stock / Base)225/50R18

Section Width (mm)

Aspect Ratio (%)

Rim Diameter (in)

Wheel Width (in)

Offset ET (mm)

Overall Height:26.9"

Sidewall:4.4"

Revs/Mile:751

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

+10.1%At 60 mph reading, actual speed is 66.1 mph

Indicated	Actual Speed	Diff
20 mph	22.0 mph	+2.0 mph
30 mph	33.0 mph	+3.0 mph
45 mph	49.6 mph	+4.6 mph
60 mph	66.1 mph	+6.1 mph
75 mph	82.6 mph	+7.6 mph
90 mph	99.1 mph	+9.1 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:+1.36" ground clearance

Vehicles That Fit P225/50R18 (132+ Models)

Factory standard and optional vehicle fitments utilizing P225/50R18 tires:

Year	Make & Model	Trim / Variant	Lookup Specs
2006	Chevrolet Malibu	Maxx SS	View 2006 Malibu ›
2006	Chevrolet Malibu	SS	View 2006 Malibu ›
2007	Chevrolet Malibu	Maxx SS	View 2007 Malibu ›
2007	Chevrolet Malibu	SS	View 2007 Malibu ›
2008	Chevrolet Malibu	LTZ, 2.4 B	View 2008 Malibu ›
2008	Chevrolet Malibu	LTZ, 3.6 7	View 2008 Malibu ›
2009	Chevrolet Malibu	LTZ, 2.4 B	View 2009 Malibu ›
2009	Chevrolet Malibu	LTZ, 3.6 7	View 2009 Malibu ›
2010	Chevrolet Malibu	LTZ, 2.4 0	View 2010 Malibu ›
2010	Chevrolet Malibu	LTZ, 2.4 B	View 2010 Malibu ›
2010	Chevrolet Malibu	LTZ, 3.6 7	View 2010 Malibu ›
2011	Chevrolet Malibu	LTZ, 2.4 1	View 2011 Malibu ›
2011	Chevrolet Malibu	LTZ, 2.4 U	View 2011 Malibu ›
2011	Chevrolet Malibu	LTZ, 3.6 7	View 2011 Malibu ›
2012	Chevrolet Malibu	LTZ, 2.4L Eng VIN 0	View 2012 Malibu ›
2012	Chevrolet Malibu	LTZ, 2.4L Eng VIN 1	View 2012 Malibu ›
2012	Chevrolet Malibu	LTZ, 2.4L Eng VIN U	View 2012 Malibu ›
2012	Chevrolet Malibu	LTZ, 3.6L Eng VIN 7	View 2012 Malibu ›
2011	Chrysler 200	Limited, 2D Convertible	View 2011 200 ›
2011	Chrysler 200	Limited, 4D Sedan, 2.4 B, ED3	View 2011 200 ›
2011	Chrysler 200	Limited, 4D Sedan, 2.4 B, EDG	View 2011 200 ›
2011	Chrysler 200	Limited, 4D Sedan, 3.6 G	View 2011 200 ›
2011	Chrysler 200	S, 2D Convertible	View 2011 200 ›
2011	Chrysler 200	S, 4D Sedan	View 2011 200 ›
2012	Chrysler 200	Limited, 2D Convertible	View 2012 200 ›
2012	Chrysler 200	Limited, 4D Sedan, 2.4L Eng VIN B, Eng CD ED3	View 2012 200 ›
2012	Chrysler 200	Limited, 4D Sedan, 3.6L Eng VIN G	View 2012 200 ›
2012	Chrysler 200	S, 2D Convertible	View 2012 200 ›
2012	Chrysler 200	Limited, 4D Sedan, 2.4L Eng VIN B, Eng CD EDG	View 2012 200 ›
2012	Chrysler 200	S, 4D Sedan	View 2012 200 ›
2013	Chrysler 200	S, 2D Convertible	View 2013 200 ›
2013	Chrysler 200	S, 4D Sedan, 3.6L Eng VIN G	View 2013 200 ›
2013	Chrysler 200	S, 4D Sedan, 2.4L Eng VIN B, Eng CD ED3	View 2013 200 ›
2013	Chrysler 200	S, 4D Sedan, 2.4L Eng VIN B, Eng CD EDG	View 2013 200 ›
2014	Chrysler 200	Limited, 2D Convertible	View 2014 200 ›
2014	Chrysler 200	S	View 2014 200 ›
2011	Dodge Avenger	Heat	View 2011 Avenger ›
2011	Dodge Avenger	Lux, 2.4 B, ED3	View 2011 Avenger ›
2011	Dodge Avenger	Lux, 2.4 B, EDG	View 2011 Avenger ›
2011	Dodge Avenger	Lux, 3.6 G	View 2011 Avenger ›
2012	Dodge Avenger	R/T	View 2012 Avenger ›
2012	Dodge Avenger	SXT Plus	View 2012 Avenger ›
2013	Dodge Avenger	R/T	View 2013 Avenger ›
2014	Dodge Avenger	R/T	View 2014 Avenger ›
2008	Infiniti G37	Base	View 2008 G37 ›
2008	Infiniti G37	Journey	View 2008 G37 ›
2009	Infiniti G37	Base, 2D Convertible	View 2009 G37 ›
2009	Infiniti G37	Base, 2D Coupe	View 2009 G37 ›
2009	Infiniti G37	Journey, 2D Coupe	View 2009 G37 ›
2009	Infiniti G37	x, 2D Coupe	View 2009 G37 ›
2010	Infiniti G37	Base, 2D Convertible	View 2010 G37 ›
2010	Infiniti G37	Base, 2D Coupe	View 2010 G37 ›
2010	Infiniti G37	Journey, 2D Coupe	View 2010 G37 ›
2010	Infiniti G37	x, 2D Coupe	View 2010 G37 ›
2011	Infiniti G37	Base, 2D Convertible	View 2011 G37 ›
2011	Infiniti G37	Base, 2D Coupe	View 2011 G37 ›
2011	Infiniti G37	Journey, 2D Coupe	View 2011 G37 ›
2011	Infiniti G37	x, 2D Coupe	View 2011 G37 ›
2012	Infiniti G37	Base, 2D Convertible	View 2012 G37 ›
2012	Infiniti G37	Base, 2D Coupe	View 2012 G37 ›
2012	Infiniti G37	x, 2D Coupe	View 2012 G37 ›
2012	Infiniti G37	Journey, 2D Coupe	View 2012 G37 ›
2013	Infiniti G37	Base	View 2013 G37 ›
2013	Infiniti G37	Journey, 2D Coupe	View 2013 G37 ›
2013	Infiniti G37	x, 2D Coupe	View 2013 G37 ›
2014	Infiniti Q60	Base, 2D Coupe	View 2014 Q60 ›
2014	Infiniti Q60	Base, 2D Convertible, Standard Trans	View 2014 Q60 ›
2014	Infiniti Q60	Base, 2D Convertible, Automatic Trans	View 2014 Q60 ›
2014	Infiniti Q60	Journey	View 2014 Q60 ›
2015	Infiniti Q60	Journey	View 2015 Q60 ›
2015	Infiniti Q60	Base, 2D Coupe	View 2015 Q60 ›
2015	Infiniti Q60	Base, 2D Convertible	View 2015 Q60 ›
2018	Infiniti Q50	Luxe, 2.0L Eng VIN C, AWD	View 2018 Q50 ›
2018	Infiniti Q50	Luxe, 3.0L Eng VIN E, AWD	View 2018 Q50 ›
2018	Infiniti Q50	Luxe, 2.0L Eng VIN C, RWD	View 2018 Q50 ›
2018	Infiniti Q50	Luxe, 3.0L Eng VIN E, RWD	View 2018 Q50 ›
2019	Infiniti Q50	Luxe, RWD	View 2019 Q50 ›
2019	Infiniti Q50	Luxe, AWD	View 2019 Q50 ›
2020	Infiniti Q50	Luxe, AWD	View 2020 Q50 ›
2020	Infiniti Q50	Luxe, RWD	View 2020 Q50 ›
2021	Infiniti Q50	Luxe, AWD	View 2021 Q50 ›
2021	Infiniti Q50	Luxe, RWD	View 2021 Q50 ›
2022	Infiniti Q50	Luxe, AWD	View 2022 Q50 ›
2022	Infiniti Q50	Luxe, RWD	View 2022 Q50 ›
2023	Infiniti Q50	Luxe, AWD	View 2023 Q50 ›
2023	Infiniti Q50	Luxe, RWD	View 2023 Q50 ›
2024	Infiniti Q50	Luxe, RWD	View 2024 Q50 ›
2024	Infiniti Q50	Luxe, AWD	View 2024 Q50 ›
2005	Pontiac Grand Prix	GXP	View 2005 Grand Prix ›
2006	Pontiac G6	GTP, 2D Convertible	View 2006 G6 ›
2006	Pontiac G6	GTP, 2D Coupe, Automatic	View 2006 G6 ›
2006	Pontiac G6	GTP, 2D Coupe, Standard	View 2006 G6 ›
2006	Pontiac G6	GTP, 4D Sedan, Automatic	View 2006 G6 ›
2006	Pontiac G6	GTP, 4D Sedan, Standard	View 2006 G6 ›
2006	Pontiac Grand Prix	GXP	View 2006 Grand Prix ›
2007	Pontiac G6	GT, 2D Convertible, 3.5 N	View 2007 G6 ›
2007	Pontiac G6	GT, 2D Convertible, 3.9 1	View 2007 G6 ›
2007	Pontiac G6	GT, 2D Coupe, 3.5 N	View 2007 G6 ›
2007	Pontiac G6	GT, 2D Coupe, 3.9 1, Automatic	View 2007 G6 ›
2007	Pontiac G6	GT, 2D Coupe, 3.9 1, Standard	View 2007 G6 ›
2007	Pontiac G6	GT, 4D Sedan, 3.5 N	View 2007 G6 ›
2007	Pontiac G6	GT, 4D Sedan, 3.9 1, Automatic	View 2007 G6 ›
2007	Pontiac G6	GT, 4D Sedan, 3.9 1, Standard	View 2007 G6 ›
2007	Pontiac G6	GTP, 2D Coupe	View 2007 G6 ›
2007	Pontiac G6	GTP, 4D Sedan	View 2007 G6 ›
2007	Pontiac Grand Prix	GXP	View 2007 Grand Prix ›
2008	Pontiac G6	GT, 2D Convertible, 3.9 1	View 2008 G6 ›
2008	Pontiac G6	GT, 2D Coupe	View 2008 G6 ›
2008	Pontiac G6	GT, 2D Convertible, 3.5 N	View 2008 G6 ›
2008	Pontiac G6	GT, 4D Sedan	View 2008 G6 ›
2008	Pontiac G6	GXP, 4D Sedan	View 2008 G6 ›
2008	Pontiac G6	GXP, 2D Coupe	View 2008 G6 ›
2008	Pontiac Grand Prix	GXP	View 2008 Grand Prix ›
2009	Pontiac G6	GT, 2D Convertible, 3.5 K	View 2009 G6 ›
2009	Pontiac G6	GT, 2D Convertible, 3.5 N	View 2009 G6 ›
2009	Pontiac G6	GT, 2D Convertible, 3.9 1	View 2009 G6 ›
2009	Pontiac G6	GT, 2D Coupe, 3.5 K	View 2009 G6 ›
2009	Pontiac G6	GT, 2D Coupe, 3.5 N	View 2009 G6 ›
2009	Pontiac G6	GT, 4D Sedan, 3.5 K	View 2009 G6 ›
2009	Pontiac G6	GT, 4D Sedan, 3.5 N	View 2009 G6 ›
2009	Pontiac G6	GXP, 2D Coupe	View 2009 G6 ›
2009	Pontiac G6	GXP, 4D Sedan	View 2009 G6 ›
2010	Pontiac G6	GT, 2D Convertible, 3.5 N	View 2010 G6 ›
2010	Pontiac G6	GT, 2D Convertible, 3.5 K	View 2010 G6 ›
2010	Pontiac G6	GT, 2D Convertible, 3.9 1	View 2010 G6 ›
2010	Pontiac G6	GT, 2D Coupe, 3.5 K	View 2010 G6 ›
2010	Pontiac G6	GT, 2D Coupe, 3.5 N	View 2010 G6 ›
2010	Pontiac G6	GT, 4D Sedan, 3.5 K	View 2010 G6 ›
2010	Pontiac G6	GT, 4D Sedan, 3.5 N	View 2010 G6 ›
2007	Saturn Aura	XR	View 2007 Aura ›
2008	Saturn Aura	XR	View 2008 Aura ›
2009	Saturn Aura	XR, 3.6 7	View 2009 Aura ›