What is the diameter of a 255/40R17 tire?

A 255/40R17 tire has an overall diameter of 25.03 inches (635.8mm).

How many revolutions per mile does a 255/40R17 tire make?

A 255/40R17 tire makes approximately 806 revolutions per mile.

What rim width is recommended for 255/40R17 tires?

The recommended wheel rim width for a 255/40R17 tire is 6.4" - 8.9".

255/40R17

Standard Metric

Factory Specs, Physical Dimensions & Compatible Vehicle Applications

Factory Spec Overview

The 255/40R17 tire size features an overall diameter of 25.03 inches, a section width of 10.0 inches (255mm), and rotates 806 times per mile. It is a standard factory tire fitment on 150+ vehicle models including Acura NSX, Acura NSX-T.

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Physical Dimensions & Specs

Overall Diameter

25.03"

635.8 mm

Section Width

255 mm

10.04" wide

Sidewall Height

4.02"

102.1 mm (40% aspect)

Revolutions / Mile

806

Circumference: 78.64"

Rim Diameter

17"

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 255/40R17 against any proposed tire size below:

Popular Comparisons:

Tire 1 (Stock / Base)255/40R17

Section Width (mm)

Aspect Ratio (%)

Rim Diameter (in)

Wheel Width (in)

Offset ET (mm)

Overall Height:25.0"

Sidewall:4.0"

Revs/Mile:806

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

+18.2%At 60 mph reading, actual speed is 70.9 mph

Indicated	Actual Speed	Diff
20 mph	23.6 mph	+3.6 mph
30 mph	35.4 mph	+5.4 mph
45 mph	53.2 mph	+8.2 mph
60 mph	70.9 mph	+10.9 mph
75 mph	88.6 mph	+13.6 mph
90 mph	106.3 mph	+16.3 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:+2.27" ground clearance

Vehicles That Fit 255/40R17 (150+ Models)

Factory standard and optional vehicle fitments utilizing 255/40R17 tires:

Year	Make & Model	Trim / Variant	Lookup Specs
2002	Acura NSX	3.0 NA1	View 2002 NSX ›
2002	Acura NSX-T	3.2 NA2	View 2002 NSX-T ›
2002	Acura NSX-T	3.0 NA1	View 2002 NSX-T ›
2002	Acura NSX	3.2 NA2	View 2002 NSX ›
2003	Acura NSX	3.0 NA1	View 2003 NSX ›
2003	Acura NSX	3.2 NA2	View 2003 NSX ›
2003	Acura NSX-T	3.0 NA1	View 2003 NSX-T ›
2003	Acura NSX-T	3.2 NA2	View 2003 NSX-T ›
2004	Acura NSX	3.0 NA1	View 2004 NSX ›
2004	Acura NSX	3.2 NA2	View 2004 NSX ›
2005	Acura NSX	3.0 NA1	View 2005 NSX ›
2005	Acura NSX	3.2 NA2	View 2005 NSX ›
2002	Audi S6	4.2 L	View 2002 S6 ›
2002	Audi S6	4.2 U	View 2002 S6 ›
2003	Audi S6	S6	View 2003 S6 ›
2006	BMW 325i	Automatic	View 2006 325i ›
2006	BMW 325xi	4D Sedan, Automatic	View 2006 325xi ›
2006	BMW 325xi	4D Sedan, Standard	View 2006 325xi ›
2006	BMW 325i	Standard	View 2006 325i ›
2006	BMW 325xi	4D Wagon, Standard	View 2006 325xi ›
2006	BMW 325xi	4D Wagon, Automatic	View 2006 325xi ›
2007	BMW 328i	2D Convertible, N51, Automatic	View 2007 328i ›
2007	BMW 328i	2D Convertible, N51, Standard	View 2007 328i ›
2007	BMW 328i	2D Convertible, N52, Standard	View 2007 328i ›
2007	BMW 328i	2D Convertible, N52, Automatic	View 2007 328i ›
2007	BMW 328i	2D Coupe, N51, Automatic	View 2007 328i ›
2007	BMW 328i	2D Coupe, N51, Standard	View 2007 328i ›
2007	BMW 328i	2D Coupe, N52, Automatic	View 2007 328i ›
2007	BMW 328i	4D Wagon, Automatic	View 2007 328i ›
2007	BMW 328i	4D Sedan, N51, Standard	View 2007 328i ›
2007	BMW 328i	4D Sedan, N52, Standard	View 2007 328i ›
2007	BMW 328i	4D Sedan, N52, Automatic	View 2007 328i ›
2007	BMW 328i	4D Sedan, N51, Automatic	View 2007 328i ›
2007	BMW 328i	2D Coupe, N52, Standard	View 2007 328i ›
2007	BMW 328i	4D Wagon, Standard	View 2007 328i ›
2007	BMW 328xi	2D Coupe, N51, Automatic	View 2007 328xi ›
2007	BMW 328xi	2D Coupe, N51, Standard	View 2007 328xi ›
2007	BMW 328xi	2D Coupe, N52	View 2007 328xi ›
2007	BMW 328xi	4D Sedan, N51, Automatic	View 2007 328xi ›
2007	BMW 328xi	4D Sedan, N51, Standard	View 2007 328xi ›
2007	BMW 328xi	4D Sedan, N52, Automatic	View 2007 328xi ›
2007	BMW 328xi	4D Sedan, N52, Standard	View 2007 328xi ›
2007	BMW 328xi	4D Wagon, Automatic	View 2007 328xi ›
2007	BMW 328xi	4D Wagon, Standard	View 2007 328xi ›
2007	BMW Z4	2D Convertible, Automatic	View 2007 Z4 ›
2007	BMW Z4	2D Convertible, Standard, GS637BZ	View 2007 Z4 ›
2007	BMW Z4	2D Convertible, Standard, GS617BG	View 2007 Z4 ›
2008	BMW 328i	4D Sedan, N51, Automatic	View 2008 328i ›
2008	BMW 328i	4D Sedan, N51, Standard	View 2008 328i ›
2008	BMW 328i	4D Sedan, N52, Automatic	View 2008 328i ›
2008	BMW 328i	4D Sedan, N52, Standard	View 2008 328i ›
2008	BMW 328i	4D Wagon, Automatic	View 2008 328i ›
2008	BMW 328i	4D Wagon, Standard	View 2008 328i ›
2008	BMW Z4	2D Convertible, Automatic	View 2008 Z4 ›
2008	BMW Z4	2D Convertible, Standard, GS617BG	View 2008 Z4 ›
2008	BMW Z4	2D Convertible, Standard, GS637BZ	View 2008 Z4 ›
2009	BMW 328i	2D Convertible, N51, Automatic	View 2009 328i ›
2009	BMW 328i	2D Convertible, N51, Standard	View 2009 328i ›
2009	BMW 328i	2D Convertible, N52, Automatic	View 2009 328i ›
2009	BMW 328i	2D Convertible, N52, Standard	View 2009 328i ›
2009	BMW 328i	2D Coupe, N51, Automatic	View 2009 328i ›
2009	BMW 328i	2D Coupe, N51, Standard	View 2009 328i ›
2009	BMW 328i	2D Coupe, N52, Automatic	View 2009 328i ›
2009	BMW 328i	2D Coupe, N52, Standard	View 2009 328i ›
2009	BMW 328i	4D Sedan, N51, Automatic	View 2009 328i ›
2009	BMW 328i	4D Sedan, N51, Standard	View 2009 328i ›
2009	BMW 328i	4D Sedan, N52, Automatic	View 2009 328i ›
2009	BMW 328i	4D Sedan, N52, Standard	View 2009 328i ›
2009	BMW 328i	4D Wagon, Automatic	View 2009 328i ›
2009	BMW 328i	4D Wagon, Standard	View 2009 328i ›
2009	BMW Z4	35i, Automatic DCT	View 2009 Z4 ›
2009	BMW Z4	35i, Standard	View 2009 Z4 ›
2010	BMW 328i	2D Convertible, N51, Automatic	View 2010 328i ›
2010	BMW 328i	2D Convertible, N51, Standard	View 2010 328i ›
2010	BMW 328i	2D Convertible, N52, Automatic	View 2010 328i ›
2010	BMW 328i	2D Convertible, N52, Standard	View 2010 328i ›
2010	BMW 328i	2D Coupe, N51, Automatic	View 2010 328i ›
2010	BMW 328i	2D Coupe, N51, Standard	View 2010 328i ›
2010	BMW 328i	2D Coupe, N52, Automatic	View 2010 328i ›
2010	BMW 328i	2D Coupe, N52, Standard	View 2010 328i ›
2010	BMW 328i	4D Sedan, N51, Automatic	View 2010 328i ›
2010	BMW 328i	4D Sedan, N51, Standard	View 2010 328i ›
2010	BMW 328i	4D Sedan, N52, Automatic	View 2010 328i ›
2010	BMW 328i	4D Sedan, N52, Standard	View 2010 328i ›
2010	BMW 328i	4D Wagon, Automatic	View 2010 328i ›
2010	BMW 328i	4D Wagon, Standard	View 2010 328i ›
2011	BMW 328i	2D Convertible, N51, Automatic	View 2011 328i ›
2011	BMW 328i	2D Convertible, N51, Standard	View 2011 328i ›
2011	BMW 328i	2D Convertible, N52, Standard	View 2011 328i ›
2011	BMW 328i	2D Coupe, N51, Standard	View 2011 328i ›
2011	BMW 328i	2D Convertible, N52, Automatic, GA6HP19Z	View 2011 328i ›
2011	BMW 328i	2D Coupe, N52, Automatic, GA6HP19Z	View 2011 328i ›
2011	BMW 328i	2D Coupe, N51, Automatic	View 2011 328i ›
2011	BMW 328i	2D Coupe, N52, Automatic, GA6L45R	View 2011 328i ›
2011	BMW 328i	2D Convertible, N52, Automatic, GA6L45R	View 2011 328i ›
2011	BMW 328i	2D Coupe, N52, Standard	View 2011 328i ›
2011	BMW 328i	4D Sedan, 3.0 C, N51, Automatic	View 2011 328i ›
2011	BMW 328i	4D Sedan, 3.0 C, N51, Standard	View 2011 328i ›
2011	BMW 328i	4D Sedan, 3.0 C, N52, Automatic, GA6HP19Z	View 2011 328i ›
2011	BMW 328i	4D Sedan, 3.0 C, N52, Automatic, GA6L45R	View 2011 328i ›
2011	BMW 328i	4D Sedan, 3.0 C, N52, Standard	View 2011 328i ›
2011	BMW 328i	4D Sedan, 3.0 G, N51, Automatic	View 2011 328i ›
2011	BMW 328i	4D Sedan, 3.0 G, N52, Automatic, GA6L45R	View 2011 328i ›
2011	BMW 328i	4D Sedan, 3.0 G, N52, Standard	View 2011 328i ›
2011	BMW 328i	4D Wagon, Automatic, GA6HP19Z	View 2011 328i ›
2011	BMW 328i	4D Wagon, Automatic, GA6L45R	View 2011 328i ›
2011	BMW 328i	4D Wagon, Standard	View 2011 328i ›
2011	BMW 328i	4D Sedan, 3.0 G, N51, Standard	View 2011 328i ›
2011	BMW 328i	4D Sedan, 3.0 G, N52, Automatic, GA6HP19Z	View 2011 328i ›
2011	BMW Z4	35i, Automatic DCT	View 2011 Z4 ›
2011	BMW Z4	35i, Standard	View 2011 Z4 ›
2012	BMW 328i	2D Convertible, Eng CD N51, Standard Trans	View 2012 328i ›
2012	BMW 328i	2D Coupe, Eng CD N52, Automatic Trans, Trans Mfr CD GA6HP19Z	View 2012 328i ›
2012	BMW 328i	2D Convertible, Eng CD N51, Automatic Trans	View 2012 328i ›
2012	BMW 328i	2D Convertible, Eng CD N52, Automatic Trans, Trans Mfr CD GA6HP19Z	View 2012 328i ›
2012	BMW 328i	2D Convertible, Eng CD N52, Standard Trans	View 2012 328i ›
2012	BMW 328i	2D Coupe, Eng CD N51, Standard Trans	View 2012 328i ›
2012	BMW 328i	2D Convertible, Eng CD N52, Automatic Trans, Trans Mfr CD GA6L45R	View 2012 328i ›
2012	BMW 328i	2D Coupe, Eng CD N51, Automatic Trans	View 2012 328i ›
2012	BMW 328i	2D Coupe, Eng CD N52, Automatic Trans, Trans Mfr CD GA6L45R	View 2012 328i ›
2012	BMW 328i	2D Coupe, Eng CD N52, Standard Trans	View 2012 328i ›
2012	BMW 328i	4D Sedan, Eng CD N20, Automatic Trans	View 2012 328i ›
2012	BMW 328i	4D Sedan, Eng CD N20, Standard Trans	View 2012 328i ›
2012	BMW 328i	4D Sedan, Eng CD N26	View 2012 328i ›
2012	BMW 328i	4D Wagon, Automatic Trans, Trans Mfr CD GA6HP19Z	View 2012 328i ›
2012	BMW 328i	4D Wagon, Automatic Trans, Trans Mfr CD GA6L45R	View 2012 328i ›
2012	BMW 328i	4D Wagon, Standard Trans	View 2012 328i ›
2012	BMW Z4	35i, Automatic DCT Trans	View 2012 Z4 ›
2012	BMW Z4	35i, Standard Trans	View 2012 Z4 ›
2013	BMW 328xi	4D Sedan, Eng CD N20	View 2013 328xi ›
2013	BMW 328xi	4D Sedan, Eng CD N26	View 2013 328xi ›
2013	BMW Z4	35i, Automatic DCT Trans	View 2013 Z4 ›
2013	BMW Z4	35i, Standard Trans	View 2013 Z4 ›
2008	Honda S2000	CR	View 2008 S2000 ›
2009	Honda S2000	CR	View 2009 S2000 ›
2010	Mercedes-Benz E350	Base, 2D Coupe, 272.988	View 2010 E350 ›
2011	Mercedes-Benz E350	Base, 2D Convertible, 272.988	View 2011 E350 ›
2011	Mercedes-Benz E350	Base, 2D Coupe, 272.988	View 2011 E350 ›
2012	Mercedes-Benz E350	Base, 2D Convertible	View 2012 E350 ›
2012	Mercedes-Benz E350	Base, 2D Coupe	View 2012 E350 ›
2013	Mercedes-Benz E350	Base, 2D Coupe	View 2013 E350 ›
2013	Mercedes-Benz E350	Base, 2D Convertible	View 2013 E350 ›
1991	Porsche 911	Turbo	View 1991 911 ›
1992	Porsche 911	Turbo	View 1992 911 ›
1993	Porsche 928	Automatic	View 1993 928 ›
1993	Porsche 928	Standard	View 1993 928 ›
1994	Porsche 911	Carrera 4, 2D Coupe	View 1994 911 ›
1994	Porsche 911	RS America Carrera 2	View 1994 911 ›
1994	Porsche 911	Carrera 4, 2D Convertible	View 1994 911 ›
1994	Porsche 928	Standard	View 1994 928 ›