TreadSize

Decoded sidewall size

285/60R20 tire size

285/60R20 in inches: 33.46" overall diameter — 11.22" wide, 6.73" sidewall.

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

285/60R20 tire detail photo with TreadSize diameter, width, and rim measurement card
Overall diameter 33.46 in 850 mm
Section width 11.22 in 285 mm
Sidewall height 6.73 in 171 mm
Revs / mile 603 speedo calibration

Before you fit 285/60R20: 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 850 mm 33.46 in
Section width 285 mm 11.22 in
Sidewall height 171 mm 6.73 in
Rim diameter 508 mm 20 in
Circumference 2670.3 mm 105.13 in
Revolutions per mile 602.7
Aspect ratio 60%

NHTSA safety record for 285/60R20

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 10 filed with NHTSA
Recalls on record 0 none on record

What owners report fails — 285/60R20

  • Tread separation 6
  • Blowout 4

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 285/60R20 compares inside the NHTSA size dataset

Complaint rank #136 of 271 among 271 safety-record sizes
Vs dataset median At median median 10 complaints
Top failure share 60% 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.

Nearby safety records by complaint volume

235/65R18 10 complaints · 4 recalls 185/55R16 10 complaints · 0 recalls 185/60R14 10 complaints · 0 recalls 215/55R18 10 complaints · 0 recalls 275/45R20 10 complaints · 0 recalls 255/35R19 11 complaints · 2 recalls 225/55R18 11 complaints · 1 recalls 255/60R19 9 complaints · 1 recalls

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

Related tire sizes

275/60R20 → 265/60R20 → 285/55R20 → 285/65R20 → 285/50R20 →
Decode another tire size →  ·  Compare two sizes →  ·  Plus sizing →

Frequently asked questions

What is the overall diameter of a 285/60R20 tire?

A 285/60R20 tire has an overall diameter of 33.46 inches (850 mm).

How tall is a 285/60R20 tire?

The sidewall height is 171 mm (6.73 inches), and the overall diameter from the ground to the top of the tire is 33.46 inches.

How many revolutions per mile does a 285/60R20 tire make?

A 285/60R20 tire makes approximately 603 revolutions per mile. Your speedometer is calibrated to this number.

What rim size does a 285/60R20 tire fit?

A 285/60R20 tire is designed for a 20-inch rim (508 mm).

Are there recalls or safety complaints for 285/60R20 tires?

NHTSA has 10 consumer complaints on record for the 285/60R20 size; the most reported issue is tread separation (6 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.