TreadSize

Decoded sidewall size

235/80R16 tire size

235/80R16 in inches: 30.80" overall diameter — 9.25" wide, 7.40" sidewall.

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

235/80R16 tire detail photo with TreadSize diameter, width, and rim measurement card
Overall diameter 30.80 in 782.4 mm
Section width 9.25 in 235 mm
Sidewall height 7.40 in 188 mm
Revs / mile 655 speedo calibration

Before you fit 235/80R16: 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 782.4 mm 30.80 in
Section width 235 mm 9.25 in
Sidewall height 188 mm 7.40 in
Rim diameter 406.4 mm 16 in
Circumference 2458.0 mm 96.77 in
Revolutions per mile 654.7
Aspect ratio 80%

NHTSA safety record for 235/80R16

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 191 filed with NHTSA
Recalls on record 0 none on record

What owners report fails — 235/80R16

  • Blowout 106
  • Tread separation 64
  • Blister 5
  • Out of round 5
  • Puncture 1

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.

How 235/80R16 compares inside the NHTSA size dataset

Complaint rank #11 of 271 among 271 safety-record sizes
Vs dataset median 181 above median 10 complaints
Top failure share 55% Blowout

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.

Nearby safety records by complaint volume

235/85R16 197 complaints · 10 recalls 205/65R15 173 complaints · 2 recalls 265/70R17 224 complaints · 12 recalls 235/75R15 228 complaints · 8 recalls 245/45R18 152 complaints · 4 recalls 225/75R15 234 complaints · 0 recalls 195/65R15 144 complaints · 0 recalls 265/70R16 143 complaints · 3 recalls

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

Related tire sizes

225/80R16 → 235/75R16 → 235/85R16 → 235/70R16 → 235/80R17 →
Decode another tire size →  ·  Compare two sizes →  ·  Plus sizing →

Frequently asked questions

What is the overall diameter of a 235/80R16 tire?

A 235/80R16 tire has an overall diameter of 30.80 inches (782.4 mm).

How tall is a 235/80R16 tire?

The sidewall height is 188 mm (7.40 inches), and the overall diameter from the ground to the top of the tire is 30.80 inches.

How many revolutions per mile does a 235/80R16 tire make?

A 235/80R16 tire makes approximately 655 revolutions per mile. Your speedometer is calibrated to this number.

What rim size does a 235/80R16 tire fit?

A 235/80R16 tire is designed for a 16-inch rim (406.4 mm).

Are there recalls or safety complaints for 235/80R16 tires?

NHTSA has 191 consumer complaints on record for the 235/80R16 size; the most reported issue is blowout (106 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.