Decoded sidewall size
155/80R16 tire size
155/80R16 in inches: 25.76" overall diameter — 6.10" wide, 4.88" sidewall.
Methodology: dimensions are calculated from standard ETRTO tire-size formulas. Last reviewed June 2026 by the TreadSize editorial team.
Before you fit 155/80R16: 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.
Compare this sizeFull dimensions
| Measurement | Metric | Imperial |
|---|---|---|
| Overall diameter | 654.4 mm | 25.76 in |
| Section width | 155 mm | 6.10 in |
| Sidewall height | 124 mm | 4.88 in |
| Rim diameter | 406.4 mm | 16 in |
| Circumference | 2055.9 mm | 80.94 in |
| Revolutions per mile | 782.8 | |
| Aspect ratio | 80% | |
NHTSA safety record for 155/80R16
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.
What owners report fails — 155/80R16
- Tread separation 2
- Blowout 2
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 155/80R16 compares inside the NHTSA size dataset
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
Dataset download: JSON or CSV. Latest recall lookup: NHTSA.gov.
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Frequently asked questions
What is the overall diameter of a 155/80R16 tire?
A 155/80R16 tire has an overall diameter of 25.76 inches (654.4 mm).
How tall is a 155/80R16 tire?
The sidewall height is 124 mm (4.88 inches), and the overall diameter from the ground to the top of the tire is 25.76 inches.
How many revolutions per mile does a 155/80R16 tire make?
A 155/80R16 tire makes approximately 783 revolutions per mile. Your speedometer is calibrated to this number.
What rim size does a 155/80R16 tire fit?
A 155/80R16 tire is designed for a 16-inch rim (406.4 mm).
Are there recalls or safety complaints for 155/80R16 tires?
NHTSA has 4 consumer complaints on record for the 155/80R16 size; the most reported issue is tread separation (2 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.