What is the diameter of a P245/45R17 tire?

A P245/45R17 tire has an overall diameter of 25.68 inches (652.3mm).

How many revolutions per mile does a P245/45R17 tire make?

A P245/45R17 tire makes approximately 785 revolutions per mile.

What rim width is recommended for P245/45R17 tires?

The recommended wheel rim width for a P245/45R17 tire is 6.1" - 8.6".

P245/45R17

Passenger / P-Metric

Factory Specs, Physical Dimensions & Compatible Vehicle Applications

Factory Spec Overview

The P245/45R17 tire size features an overall diameter of 25.68 inches, a section width of 9.6 inches (245mm), and rotates 785 times per mile. It is a standard factory tire fitment on 77+ vehicle models including Cadillac CTS.

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Physical Dimensions & Specs

Overall Diameter

25.68"

652.3 mm

Section Width

245 mm

9.65" wide

Sidewall Height

4.34"

110.2 mm (45% aspect)

Revolutions / Mile

785

Circumference: 80.68"

Rim Diameter

17"

Wheel size

Recommended Rim Width

6.1" - 8.6"

Optimal rim width range

Speedometer & Alternate Size Calculator

Testing an alternate size for your vehicle? Compare P245/45R17 against any proposed tire size below:

Popular Comparisons:

Tire 1 (Stock / Base)245/45R17

Section Width (mm)

Aspect Ratio (%)

Rim Diameter (in)

Wheel Width (in)

Offset ET (mm)

Overall Height:25.7"

Sidewall:4.3"

Revs/Mile:785

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

+15.2%At 60 mph reading, actual speed is 69.1 mph

Indicated	Actual Speed	Diff
20 mph	23.0 mph	+3.0 mph
30 mph	34.5 mph	+4.5 mph
45 mph	51.8 mph	+6.8 mph
60 mph	69.1 mph	+9.1 mph
75 mph	86.4 mph	+11.4 mph
90 mph	103.6 mph	+13.6 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:+1.95" ground clearance

Vehicles That Fit P245/45R17 (77+ Models)

Factory standard and optional vehicle fitments utilizing P245/45R17 tires:

Year	Make & Model	Trim / Variant	Lookup Specs
2014	Cadillac CTS	Base, 4D Sedan, 2.0L Eng VIN X, RWD	View 2014 CTS ›
2014	Cadillac CTS	Base, 4D Sedan, 2.0L Eng VIN X, AWD	View 2014 CTS ›
2014	Cadillac CTS	Base, 4D Sedan, 3.6L Eng VIN 3	View 2014 CTS ›
2014	Cadillac CTS	Luxury, 4D Sedan, 2.0L Eng VIN X, AWD	View 2014 CTS ›
2014	Cadillac CTS	Luxury, 4D Sedan, 2.0L Eng VIN X, RWD	View 2014 CTS ›
2014	Cadillac CTS	Luxury, 4D Sedan, 3.6L Eng VIN 3, AWD	View 2014 CTS ›
2014	Cadillac CTS	Luxury, 4D Sedan, 3.6L Eng VIN 3, RWD	View 2014 CTS ›
2014	Cadillac CTS	Luxury, 4D Wagon, AWD	View 2014 CTS ›
2014	Cadillac CTS	Luxury, 4D Wagon, RWD	View 2014 CTS ›
2015	Cadillac CTS	Base, AWD	View 2015 CTS ›
2015	Cadillac CTS	Base, RWD	View 2015 CTS ›
2015	Cadillac CTS	Luxury, 2.0L Eng VIN X, AWD	View 2015 CTS ›
2015	Cadillac CTS	Luxury, 2.0L Eng VIN X, RWD	View 2015 CTS ›
2015	Cadillac CTS	Luxury, 3.6L Eng VIN 3, AWD	View 2015 CTS ›
2015	Cadillac CTS	Luxury, 3.6L Eng VIN 3, RWD	View 2015 CTS ›
2016	Cadillac CTS	Base, AWD	View 2016 CTS ›
2016	Cadillac CTS	Base, RWD	View 2016 CTS ›
2016	Cadillac CTS	Luxury, 2.0L Eng VIN X, AWD	View 2016 CTS ›
2016	Cadillac CTS	Luxury, 2.0L Eng VIN X, RWD	View 2016 CTS ›
2016	Cadillac CTS	Luxury, 3.6L Eng VIN S, AWD	View 2016 CTS ›
2016	Cadillac CTS	Luxury, 3.6L Eng VIN S, RWD	View 2016 CTS ›
2017	Cadillac CTS	Base, AWD	View 2017 CTS ›
2017	Cadillac CTS	Luxury, 2.0L Eng VIN X, AWD	View 2017 CTS ›
2017	Cadillac CTS	Luxury, 2.0L Eng VIN X, RWD	View 2017 CTS ›
2017	Cadillac CTS	Luxury, 3.6L Eng VIN S, AWD	View 2017 CTS ›
2017	Cadillac CTS	Luxury, 3.6L Eng VIN S, RWD	View 2017 CTS ›
2017	Cadillac CTS	Base, RWD	View 2017 CTS ›
2018	Cadillac CTS	Base, AWD	View 2018 CTS ›
2018	Cadillac CTS	Base, RWD	View 2018 CTS ›
2018	Cadillac CTS	Luxury, 2.0L Eng VIN X, AWD	View 2018 CTS ›
2018	Cadillac CTS	Luxury, 2.0L Eng VIN X, RWD	View 2018 CTS ›
2018	Cadillac CTS	Luxury, 3.6L Eng VIN S, AWD	View 2018 CTS ›
2018	Cadillac CTS	Luxury, 3.6L Eng VIN S, RWD	View 2018 CTS ›
2019	Cadillac CTS	Base, RWD	View 2019 CTS ›
2019	Cadillac CTS	Luxury, 2.0L Eng VIN X, AWD	View 2019 CTS ›
2019	Cadillac CTS	Luxury, 3.6L Eng VIN S, RWD	View 2019 CTS ›
2019	Cadillac CTS	Luxury, 3.6L Eng VIN S, AWD	View 2019 CTS ›
2019	Cadillac CTS	Luxury, 2.0L Eng VIN X, RWD	View 2019 CTS ›
2019	Cadillac CTS	Base, AWD	View 2019 CTS ›
1997	Chevrolet Corvette	Automatic	View 1997 Corvette ›
1997	Chevrolet Corvette	Standard	View 1997 Corvette ›
1998	Chevrolet Corvette	2D Convertible, Automatic	View 1998 Corvette ›
1998	Chevrolet Corvette	2D Convertible, Standard	View 1998 Corvette ›
1998	Chevrolet Corvette	2D Coupe, Automatic	View 1998 Corvette ›
1998	Chevrolet Corvette	2D Coupe, Standard	View 1998 Corvette ›
1999	Chevrolet Corvette	2D Convertible, Standard	View 1999 Corvette ›
1999	Chevrolet Corvette	2D Convertible, Automatic	View 1999 Corvette ›
1999	Chevrolet Corvette	2D Coupe, Automatic	View 1999 Corvette ›
1999	Chevrolet Corvette	2D Coupe, Standard	View 1999 Corvette ›
1999	Chevrolet Corvette	2D Hardtop	View 1999 Corvette ›
2000	Chevrolet Corvette	2D Convertible, Automatic	View 2000 Corvette ›
2000	Chevrolet Corvette	2D Convertible, Standard	View 2000 Corvette ›
2000	Chevrolet Corvette	2D Coupe, Automatic	View 2000 Corvette ›
2000	Chevrolet Corvette	2D Coupe, Standard	View 2000 Corvette ›
2000	Chevrolet Corvette	2D Hardtop	View 2000 Corvette ›
2001	Chevrolet Corvette	Base, 2D Convertible, Automatic	View 2001 Corvette ›
2001	Chevrolet Corvette	Base, 2D Convertible, Standard	View 2001 Corvette ›
2001	Chevrolet Corvette	Base, 2D Coupe, Automatic	View 2001 Corvette ›
2001	Chevrolet Corvette	Base, 2D Coupe, Standard	View 2001 Corvette ›
2002	Chevrolet Corvette	Base, 2D Convertible, Automatic	View 2002 Corvette ›
2002	Chevrolet Corvette	Base, 2D Coupe, Automatic	View 2002 Corvette ›
2002	Chevrolet Corvette	Base, 2D Coupe, Standard	View 2002 Corvette ›
2002	Chevrolet Corvette	Base, 2D Convertible, Standard	View 2002 Corvette ›
2003	Chevrolet Corvette	50th Anniversary Edition, 2D Convertible, Automatic	View 2003 Corvette ›
2003	Chevrolet Corvette	50th Anniversary Edition, 2D Convertible, Standard	View 2003 Corvette ›
2003	Chevrolet Corvette	50th Anniversary Edition, 2D Coupe, Automatic	View 2003 Corvette ›
2003	Chevrolet Corvette	50th Anniversary Edition, 2D Coupe, Standard	View 2003 Corvette ›
2003	Chevrolet Corvette	Base, 2D Convertible, Automatic	View 2003 Corvette ›
2003	Chevrolet Corvette	Base, 2D Convertible, Standard	View 2003 Corvette ›
2003	Chevrolet Corvette	Base, 2D Coupe, Automatic	View 2003 Corvette ›
2003	Chevrolet Corvette	Base, 2D Coupe, Standard	View 2003 Corvette ›
2004	Chevrolet Corvette	Base, 2D Convertible, Automatic	View 2004 Corvette ›
2004	Chevrolet Corvette	Base, 2D Convertible, Standard	View 2004 Corvette ›
2004	Chevrolet Corvette	Base, 2D Coupe, Automatic	View 2004 Corvette ›
2004	Chevrolet Corvette	Base, 2D Coupe, Standard	View 2004 Corvette ›
1991	Dodge Stealth	R/T Turbo	View 1991 Stealth ›
1993	Ford Mustang	Cobra	View 1993 Mustang ›