TreadSize

Decoded sidewall size

225/50R15 tire size

225/50R15 in inches: 23.86" overall diameter — 8.86" wide, 4.43" sidewall.

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

225/50R15 tire detail photo with TreadSize diameter, width, and rim measurement card
Overall diameter 23.86 in 606 mm
Section width 8.86 in 225 mm
Sidewall height 4.43 in 112.5 mm
Revs / mile 845 speedo calibration

Before you fit 225/50R15: 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 606 mm 23.86 in
Section width 225 mm 8.86 in
Sidewall height 112.5 mm 4.43 in
Rim diameter 381 mm 15 in
Circumference 1903.8 mm 74.95 in
Revolutions per mile 845.3
Aspect ratio 50%

NHTSA safety record for 225/50R15

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 0 filed with NHTSA
Recalls on record 1 see below

1 tire recall on record affecting 225/50R15

  • NHTSA 16T006000 · 2016 PIRELLI PZERO TROFEO A missing date code could render the tire difficult to identify in the event of a safety-related issue, possibly causing them not to be removed from service. This will increase the
Look up these campaign numbers at NHTSA.gov →

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 225/50R15

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
16T006000 - 2016 PIRELLI PZERO TROFEO A missing date code could render the tire difficult to identify in the event of a safety-related issue, possibly causing them not to be removed from service. This will increase the

How 225/50R15 compares inside the NHTSA size dataset

Complaint rank #241 of 271 among 271 safety-record sizes
Vs dataset median 10 below median 10 complaints
Top failure share 0% No leading category

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

425/65R22 0 complaints · 4 recalls 240/50R16 0 complaints · 2 recalls 255/55R20 0 complaints · 2 recalls 325/60R18 0 complaints · 2 recalls 120/70R14 0 complaints · 1 recalls 120/70R15 0 complaints · 1 recalls 150/70R18 0 complaints · 1 recalls 160/60R14 0 complaints · 1 recalls

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

Related tire sizes

205/50R15 → 225/60R15 → 225/50R16 →
Decode another tire size →  ·  Compare two sizes →  ·  Plus sizing →

Frequently asked questions

What is the overall diameter of a 225/50R15 tire?

A 225/50R15 tire has an overall diameter of 23.86 inches (606 mm).

How tall is a 225/50R15 tire?

The sidewall height is 112.5 mm (4.43 inches), and the overall diameter from the ground to the top of the tire is 23.86 inches.

How many revolutions per mile does a 225/50R15 tire make?

A 225/50R15 tire makes approximately 845 revolutions per mile. Your speedometer is calibrated to this number.

What rim size does a 225/50R15 tire fit?

A 225/50R15 tire is designed for a 15-inch rim (381 mm).

Are there recalls or safety complaints for 225/50R15 tires?

NHTSA has 0 consumer complaints on record for the 225/50R15 size and 1 recall. 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.