What is the diameter of a P255/70R18 tire?

A P255/70R18 tire has an overall diameter of 32.06 inches (814.3mm).

How many revolutions per mile does a P255/70R18 tire make?

A P255/70R18 tire makes approximately 629 revolutions per mile.

What rim width is recommended for P255/70R18 tires?

The recommended wheel rim width for a P255/70R18 tire is 6.4" - 8.9".

P255/70R18

Passenger / P-Metric

Factory Specs, Physical Dimensions & Compatible Vehicle Applications

Factory Spec Overview

The P255/70R18 tire size features an overall diameter of 32.06 inches, a section width of 10.0 inches (255mm), and rotates 629 times per mile. It is a standard factory tire fitment on 150+ vehicle models including Ford Expedition, Ford Expedition EL.

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Physical Dimensions & Specs

Overall Diameter

32.06"

814.3 mm

Section Width

255 mm

10.04" wide

Sidewall Height

7.03"

178.6 mm (70% aspect)

Revolutions / Mile

629

Circumference: 100.7"

Rim Diameter

18"

Wheel size

Recommended Rim Width

6.4" - 8.9"

Optimal rim width range

Speedometer & Alternate Size Calculator

Testing an alternate size for your vehicle? Compare P255/70R18 against any proposed tire size below:

Popular Comparisons:

Tire 1 (Stock / Base)255/70R18

Section Width (mm)

Aspect Ratio (%)

Rim Diameter (in)

Wheel Width (in)

Offset ET (mm)

Overall Height:32.1"

Sidewall:7.0"

Revs/Mile:629

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

-7.7%At 60 mph reading, actual speed is 55.4 mph

Indicated	Actual Speed	Diff
20 mph	18.5 mph	-1.5 mph
30 mph	27.7 mph	-2.3 mph
45 mph	41.5 mph	-3.5 mph
60 mph	55.4 mph	-4.6 mph
75 mph	69.2 mph	-5.8 mph
90 mph	83.0 mph	-7.0 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:-1.24" lower ground clearance

Vehicles That Fit P255/70R18 (150+ Models)

Factory standard and optional vehicle fitments utilizing P255/70R18 tires:

Year	Make & Model	Trim / Variant	Lookup Specs
2007	Ford Expedition	4WD	View 2007 Expedition ›
2007	Ford Expedition	RWD	View 2007 Expedition ›
2007	Ford Expedition EL	4WD	View 2007 Expedition EL ›
2007	Ford Expedition EL	RWD	View 2007 Expedition EL ›
2008	Ford Expedition	4WD	View 2008 Expedition ›
2008	Ford Expedition	RWD	View 2008 Expedition ›
2008	Ford Expedition EL	RWD	View 2008 Expedition EL ›
2008	Ford Expedition EL	4WD	View 2008 Expedition EL ›
2009	Ford Expedition	4WD	View 2009 Expedition ›
2009	Ford Expedition EL	4WD	View 2009 Expedition EL ›
2009	Ford Expedition	RWD	View 2009 Expedition ›
2009	Ford Expedition EL	RWD	View 2009 Expedition EL ›
2010	Ford Expedition	4WD	View 2010 Expedition ›
2010	Ford Expedition	RWD	View 2010 Expedition ›
2010	Ford Expedition EL	4WD	View 2010 Expedition EL ›
2010	Ford Expedition EL	RWD	View 2010 Expedition EL ›
2008	Jeep Wrangler	Sahara, Automatic	View 2008 Wrangler ›
2008	Jeep Wrangler	Sahara, Standard	View 2008 Wrangler ›
2008	Jeep Wrangler	Unlimited Sahara, 4WD, Standard	View 2008 Wrangler ›
2008	Jeep Wrangler	Unlimited Sahara, RWD, Automatic	View 2008 Wrangler ›
2008	Jeep Wrangler	Unlimited Sahara, RWD, Standard	View 2008 Wrangler ›
2008	Jeep Wrangler	Unlimited Sahara, 4WD, Automatic	View 2008 Wrangler ›
2009	Jeep Wrangler	Sahara, Automatic	View 2009 Wrangler ›
2009	Jeep Wrangler	Sahara, Standard	View 2009 Wrangler ›
2009	Jeep Wrangler	Unlimited Sahara, 4WD, Automatic	View 2009 Wrangler ›
2009	Jeep Wrangler	Unlimited Sahara, 4WD, Standard	View 2009 Wrangler ›
2009	Jeep Wrangler	Unlimited Sahara, RWD	View 2009 Wrangler ›
2010	Jeep Wrangler	Sahara, Automatic	View 2010 Wrangler ›
2010	Jeep Wrangler	Sahara, Standard	View 2010 Wrangler ›
2010	Jeep Wrangler	Unlimited Sahara, 4WD, Automatic	View 2010 Wrangler ›
2010	Jeep Wrangler	Unlimited Sahara, 4WD, Standard	View 2010 Wrangler ›
2010	Jeep Wrangler	Unlimited Sahara, RWD	View 2010 Wrangler ›
2011	Jeep Wrangler	70th Anniversary, Automatic	View 2011 Wrangler ›
2011	Jeep Wrangler	70th Anniversary, Standard	View 2011 Wrangler ›
2011	Jeep Wrangler	Sahara, Standard	View 2011 Wrangler ›
2011	Jeep Wrangler	Unlimited 70th Anniversary, Automatic	View 2011 Wrangler ›
2011	Jeep Wrangler	Unlimited 70th Anniversary, Standard	View 2011 Wrangler ›
2011	Jeep Wrangler	Sahara, Automatic	View 2011 Wrangler ›
2011	Jeep Wrangler	Unlimited Sahara, Automatic	View 2011 Wrangler ›
2011	Jeep Wrangler	Unlimited Sahara, Standard	View 2011 Wrangler ›
2012	Jeep Wrangler	Sahara, Automatic Trans	View 2012 Wrangler ›
2012	Jeep Wrangler	Sahara, Standard Trans	View 2012 Wrangler ›
2012	Jeep Wrangler	Unlimited Sahara, Automatic Trans	View 2012 Wrangler ›
2012	Jeep Wrangler	Unlimited Sahara, Standard Trans	View 2012 Wrangler ›
2013	Jeep Wrangler	Sahara, Automatic Trans	View 2013 Wrangler ›
2013	Jeep Wrangler	Sahara, Standard Trans	View 2013 Wrangler ›
2013	Jeep Wrangler	Unlimited Sahara, Automatic Trans	View 2013 Wrangler ›
2013	Jeep Wrangler	Unlimited Sahara, Standard Trans	View 2013 Wrangler ›
2014	Jeep Wrangler	Sahara, Automatic Trans	View 2014 Wrangler ›
2014	Jeep Wrangler	Sahara, Standard Trans	View 2014 Wrangler ›
2014	Jeep Wrangler	Unlimited Sahara, Automatic Trans	View 2014 Wrangler ›
2014	Jeep Wrangler	Unlimited Sahara, Standard Trans	View 2014 Wrangler ›
2015	Jeep Wrangler	Sahara, Automatic Trans	View 2015 Wrangler ›
2015	Jeep Wrangler	Sahara, Standard Trans	View 2015 Wrangler ›
2015	Jeep Wrangler	Unlimited Sahara, Automatic Trans	View 2015 Wrangler ›
2015	Jeep Wrangler	Unlimited Sahara, Standard Trans	View 2015 Wrangler ›
2016	Jeep Wrangler	Sahara, Automatic Trans	View 2016 Wrangler ›
2016	Jeep Wrangler	Unlimited Sahara, Automatic Trans	View 2016 Wrangler ›
2016	Jeep Wrangler	Unlimited Sahara, Standard Trans	View 2016 Wrangler ›
2016	Jeep Wrangler	Sahara, Standard Trans	View 2016 Wrangler ›
2017	Jeep Wrangler	Sahara, Automatic Trans	View 2017 Wrangler ›
2017	Jeep Wrangler	Sahara, Standard Trans	View 2017 Wrangler ›
2017	Jeep Wrangler	Unlimited Sahara, Automatic Trans	View 2017 Wrangler ›
2017	Jeep Wrangler	Unlimited Sahara, Standard Trans	View 2017 Wrangler ›
2018	Jeep Wrangler JK	Sahara, Automatic Trans	View 2018 Wrangler JK ›
2018	Jeep Wrangler JK	Sahara, Standard Trans	View 2018 Wrangler JK ›
2018	Jeep Wrangler JK	Unlimited Sahara, Automatic Trans	View 2018 Wrangler JK ›
2018	Jeep Wrangler JK	Unlimited Sahara, Standard Trans	View 2018 Wrangler JK ›
2003	Lincoln Navigator	4WD	View 2003 Navigator ›
2003	Lincoln Navigator	RWD	View 2003 Navigator ›
2004	Lincoln Navigator	4WD	View 2004 Navigator ›
2004	Lincoln Navigator	RWD	View 2004 Navigator ›
2005	Lincoln Navigator	4WD	View 2005 Navigator ›
2005	Lincoln Navigator	RWD	View 2005 Navigator ›
2006	Lincoln Navigator	RWD	View 2006 Navigator ›
2006	Lincoln Navigator	4WD	View 2006 Navigator ›
2007	Lincoln Navigator	4WD	View 2007 Navigator ›
2007	Lincoln Navigator L	4WD	View 2007 Navigator L ›
2007	Lincoln Navigator L	RWD	View 2007 Navigator L ›
2007	Lincoln Navigator	RWD	View 2007 Navigator ›
2008	Lincoln Navigator	4WD	View 2008 Navigator ›
2008	Lincoln Navigator L	RWD	View 2008 Navigator L ›
2008	Lincoln Navigator L	4WD	View 2008 Navigator L ›
2008	Lincoln Navigator	RWD	View 2008 Navigator ›
2009	Lincoln Navigator L	4WD	View 2009 Navigator L ›
2009	Lincoln Navigator	RWD	View 2009 Navigator ›
2009	Lincoln Navigator	4WD	View 2009 Navigator ›
2009	Lincoln Navigator L	RWD	View 2009 Navigator L ›
2010	Lincoln Navigator L	4WD	View 2010 Navigator L ›
2010	Lincoln Navigator	4WD	View 2010 Navigator ›
2010	Lincoln Navigator	RWD	View 2010 Navigator ›
2010	Lincoln Navigator L	RWD	View 2010 Navigator L ›
2011	Lincoln Navigator L	4WD	View 2011 Navigator L ›
2011	Lincoln Navigator	4WD	View 2011 Navigator ›
2011	Lincoln Navigator	RWD	View 2011 Navigator ›
2011	Lincoln Navigator L	RWD	View 2011 Navigator L ›
2012	Lincoln Navigator	RWD	View 2012 Navigator ›
2012	Lincoln Navigator L	RWD	View 2012 Navigator L ›
2012	Lincoln Navigator L	4WD	View 2012 Navigator L ›
2012	Lincoln Navigator	4WD	View 2012 Navigator ›
2013	Lincoln Navigator	L, RWD	View 2013 Navigator ›
2013	Lincoln Navigator	L, 4WD	View 2013 Navigator ›
2013	Lincoln Navigator	Base, RWD	View 2013 Navigator ›
2013	Lincoln Navigator	Base, 4WD	View 2013 Navigator ›
2014	Lincoln Navigator	Base, 4WD	View 2014 Navigator ›
2014	Lincoln Navigator	Base, RWD	View 2014 Navigator ›
2014	Lincoln Navigator	L, RWD	View 2014 Navigator ›
2014	Lincoln Navigator	L, 4WD	View 2014 Navigator ›
2007	Toyota Tundra	Base, 4.0 U	View 2007 Tundra ›
2007	Toyota Tundra	Base, 4.7 T, 4WD	View 2007 Tundra ›
2007	Toyota Tundra	Base, 4.7 T, RWD	View 2007 Tundra ›
2007	Toyota Tundra	Base, 5.7 V, 4WD	View 2007 Tundra ›
2007	Toyota Tundra	Base, 5.7 V, RWD	View 2007 Tundra ›
2007	Toyota Tundra	SR5, 4D Pickup Crew Cab, 4.7 T, 4WD	View 2007 Tundra ›
2007	Toyota Tundra	SR5, 4D Pickup Crew Cab, 4.7 T, RWD	View 2007 Tundra ›
2007	Toyota Tundra	SR5, 4D Pickup Crew Cab, 5.7 V, 4WD	View 2007 Tundra ›
2007	Toyota Tundra	SR5, 4D Pickup Crew Cab, 5.7 V, RWD	View 2007 Tundra ›
2007	Toyota Tundra	SR5, 4D Pickup Extra Cab, 4.0 U	View 2007 Tundra ›
2007	Toyota Tundra	SR5, 4D Pickup Extra Cab, 4.7 T, 4WD	View 2007 Tundra ›
2007	Toyota Tundra	SR5, 4D Pickup Extra Cab, 4.7 T, RWD	View 2007 Tundra ›
2007	Toyota Tundra	SR5, 4D Pickup Extra Cab, 5.7 V, 4WD	View 2007 Tundra ›
2007	Toyota Tundra	SR5, 4D Pickup Extra Cab, 5.7 V, RWD	View 2007 Tundra ›
2008	Toyota Tundra	Base, 4.0 U	View 2008 Tundra ›
2008	Toyota Tundra	Base, 4.7 T, 4WD	View 2008 Tundra ›
2008	Toyota Tundra	Base, 4.7 T, RWD	View 2008 Tundra ›
2008	Toyota Tundra	Base, 5.7 V, 4WD	View 2008 Tundra ›
2008	Toyota Tundra	Base, 5.7 V, RWD	View 2008 Tundra ›
2008	Toyota Tundra	SR5, 4D Pickup Crew Cab, 4.7 T, 4WD	View 2008 Tundra ›
2008	Toyota Tundra	SR5, 4D Pickup Crew Cab, 4.7 T, RWD	View 2008 Tundra ›
2008	Toyota Tundra	SR5, 4D Pickup Crew Cab, 5.7 V, 4WD	View 2008 Tundra ›
2008	Toyota Tundra	SR5, 4D Pickup Crew Cab, 5.7 V, RWD	View 2008 Tundra ›
2008	Toyota Tundra	SR5, 4D Pickup Extra Cab, 4.0 U	View 2008 Tundra ›
2008	Toyota Tundra	SR5, 4D Pickup Extra Cab, 4.7 T, 4WD	View 2008 Tundra ›
2008	Toyota Tundra	SR5, 4D Pickup Extra Cab, 4.7 T, RWD	View 2008 Tundra ›
2008	Toyota Tundra	SR5, 4D Pickup Extra Cab, 5.7 V, 4WD	View 2008 Tundra ›
2008	Toyota Tundra	SR5, 4D Pickup Extra Cab, 5.7 V, RWD	View 2008 Tundra ›
2009	Toyota Tundra	Base, 4.0 U	View 2009 Tundra ›
2009	Toyota Tundra	Base, 4.7 T, 4WD	View 2009 Tundra ›
2009	Toyota Tundra	Base, 4.7 T, RWD	View 2009 Tundra ›
2009	Toyota Tundra	Base, 5.7 V, 4WD	View 2009 Tundra ›
2009	Toyota Tundra	Base, 5.7 V, RWD	View 2009 Tundra ›
2009	Toyota Tundra	Base, 5.7 W	View 2009 Tundra ›
2009	Toyota Tundra	SR5, 4D Pickup Crew Cab, 4.7 T, 4WD	View 2009 Tundra ›
2009	Toyota Tundra	SR5, 4D Pickup Crew Cab, 4.7 T, RWD	View 2009 Tundra ›
2009	Toyota Tundra	SR5, 4D Pickup Crew Cab, 5.7 V, 4WD	View 2009 Tundra ›
2009	Toyota Tundra	SR5, 4D Pickup Crew Cab, 5.7 V, RWD	View 2009 Tundra ›
2009	Toyota Tundra	SR5, 4D Pickup Crew Cab, 5.7 W	View 2009 Tundra ›
2009	Toyota Tundra	SR5, 4D Pickup Extra Cab, 4.0 U	View 2009 Tundra ›
2009	Toyota Tundra	SR5, 4D Pickup Extra Cab, 4.7 T, 4WD	View 2009 Tundra ›
2009	Toyota Tundra	SR5, 4D Pickup Extra Cab, 4.7 T, RWD	View 2009 Tundra ›