What is the diameter of a 235/40R17 tire?

A 235/40R17 tire has an overall diameter of 24.4 inches (619.8mm).

How many revolutions per mile does a 235/40R17 tire make?

A 235/40R17 tire makes approximately 827 revolutions per mile.

What rim width is recommended for 235/40R17 tires?

The recommended wheel rim width for a 235/40R17 tire is 5.9" - 8.2".

235/40R17

Standard Metric

Factory Specs, Physical Dimensions & Compatible Vehicle Applications

Factory Spec Overview

The 235/40R17 tire size features an overall diameter of 24.4 inches, a section width of 9.3 inches (235mm), and rotates 827 times per mile. It is a standard factory tire fitment on 2+ vehicle models including BMW M3.

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Physical Dimensions & Specs

Overall Diameter

24.4"

619.8 mm

Section Width

235 mm

9.25" wide

Sidewall Height

3.7"

94.0 mm (40% aspect)

Revolutions / Mile

827

Circumference: 76.66"

Rim Diameter

17"

Wheel size

Recommended Rim Width

5.9" - 8.2"

Optimal rim width range

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Speedometer & Alternate Size Calculator

Testing an alternate size for your vehicle? Compare 235/40R17 against any proposed tire size below:

Popular Comparisons:

Tire 1 (Stock / Base)235/40R17

Section Width (mm)

Aspect Ratio (%)

Rim Diameter (in)

Wheel Width (in)

Offset ET (mm)

Overall Height:24.4"

Sidewall:3.7"

Revs/Mile:827

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

+21.2%At 60 mph reading, actual speed is 72.7 mph

Indicated	Actual Speed	Diff
20 mph	24.2 mph	+4.2 mph
30 mph	36.4 mph	+6.4 mph
45 mph	54.5 mph	+9.5 mph
60 mph	72.7 mph	+12.7 mph
75 mph	90.9 mph	+15.9 mph
90 mph	109.1 mph	+19.1 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:+2.59" ground clearance

Vehicles That Fit 235/40R17 (2+ Models)

Factory standard and optional vehicle fitments utilizing 235/40R17 tires:

Year	Make & Model	Trim / Variant	Lookup Specs
1995	BMW M3	Automatic	View 1995 M3 ›
1995	BMW M3	Standard	View 1995 M3 ›