TreadSize

Decoded sidewall size

235/75R15 tire size

235/75R15 in inches: 28.88" overall diameter — 9.25" wide, 6.94" sidewall.

Methodology: dimensions are calculated from standard ETRTO tire-size formulas. Last reviewed June 2026 by the TreadSize editorial team.

235/75R15 tire detail photo with TreadSize diameter, width, and rim measurement card
Overall diameter 28.88 in 733.5 mm
Section width 9.25 in 235 mm
Sidewall height 6.94 in 176.25 mm
Revs / mile 698 speedo calibration

Before you fit 235/75R15: verify the vehicle placard, load index, speed rating, wheel offset, and full-lock/full-compression clearance. Nominal dimensions do not guarantee a safe physical fit.

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Full dimensions

Measurement Metric Imperial
Overall diameter 733.5 mm 28.88 in
Section width 235 mm 9.25 in
Sidewall height 176.25 mm 6.94 in
Rim diameter 381 mm 15 in
Circumference 2304.4 mm 90.72 in
Revolutions per mile 698.4
Aspect ratio 75%

NHTSA safety record for 235/75R15

Drawn from official U.S. government (NHTSA) consumer complaint and recall filings for this exact tire size — not the generic averages you'll find elsewhere.

Complaints on record 228 filed with NHTSA
Recalls on record 8 see below
Reported harm 31 reported crashes · 61 injuries · 3 deaths · 2 fires

8 tire recalls on record affecting 235/75R15

  • NHTSA 20T016000 · 2020 DURATURN TRAVIA A/T Tread or innerliner separation could lead to a loss of vehicle control, increasing the risk of a crash.
  • NHTSA 17T019000 · 2018 MASTERCRAFT MC-440 If the belt separates from the tire it can cause loss of vehicle control, increasing the risk of a crash.
  • NHTSA 17T003000 · 2017 COOPER DISCOVERER M+S SPORT The affected tires may not provide the expected traction or performance in snow conditions, increasing the risk of a crash.
  • NHTSA 17T010000 · 2017 KENDA KENECTICA The void can grow under normal use, possibly resulting in a tread separation or a sudden loss of air in the tire, increasing the risk of a vehicle crash.
  • NHTSA 15T011000 · 2015 HERCULES ALL TRAC A/T A tire tread separation may result in sudden air loss, increasing the risk of a vehicle crash.
  • NHTSA 14T013000 · 2014 CAPITOL PRECISION TRAC II A tire tread separation may result in sudden air loss, increasing the risk of a vehicle crash.
Look up these campaign numbers at NHTSA.gov →

What owners report fails — 235/75R15

  • Tread separation 88
  • Blowout 58
  • Cracking 14
  • Out of round 10
  • Blister 3

These are unverified consumer reports and manufacturer recalls filed with the National Highway Traffic Safety Administration — not validated failure rates, and not adjusted for how many tires of this size are in service. Popular sizes naturally accumulate more reports. Use this as a research signal, not a verdict on any specific tire. Data as of 2021. Source: NHTSA Office of Defects Investigation (public domain). Always check the latest recalls at NHTSA.gov and report a tire problem if you have one.

Recall timeline for 235/75R15

NHTSA campaigns affecting this tire size, grouped from the local recall dataset. Exact owner-notification dates are not stored here; open the campaign at NHTSA for current remedy details.

Open size recall page

How 235/75R15 compares inside the NHTSA size dataset

Complaint rank #8 of 271 among 271 safety-record sizes
Vs dataset median 218 above median 10 complaints
Top failure share 39% Tread separation

This comparison is derived only from tire sizes that have a real NHTSA complaint or recall record in the TreadSize dataset. Source: NHTSA ODI — Consumer Complaints (FLAT_CMPL) + Recalls (FLAT_RCL), U.S. DOT public domain; Complaints through 2021.

Dataset download: JSON or CSV. Latest recall lookup: NHTSA.gov.

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Frequently asked questions

What is the overall diameter of a 235/75R15 tire?

A 235/75R15 tire has an overall diameter of 28.88 inches (733.5 mm).

How tall is a 235/75R15 tire?

The sidewall height is 176.25 mm (6.94 inches), and the overall diameter from the ground to the top of the tire is 28.88 inches.

How many revolutions per mile does a 235/75R15 tire make?

A 235/75R15 tire makes approximately 698 revolutions per mile. Your speedometer is calibrated to this number.

What rim size does a 235/75R15 tire fit?

A 235/75R15 tire is designed for a 15-inch rim (381 mm).

Are there recalls or safety complaints for 235/75R15 tires?

NHTSA has 228 consumer complaints on record for the 235/75R15 size and 8 recalls; the most reported issue is tread separation (88 reports). These are unverified consumer reports, not validated failure rates, and are not adjusted for how many tires of this size are in service.

All dimensions calculated using standard ETRTO formulas. Always confirm fitment with your vehicle's door-placard and a qualified tire professional before purchasing.