155/80R13 Tire Size
155/80R13 diameter, sidewall, revolutions per mile, and plus-sizing options.
The 155/80R13 tire size breaks down as: 155 mm section width, 80% aspect ratio, and a 13-inch rim. Below are its real, calculated dimensions.
155/80R13 Calculated Dimensions
| Metric | Value |
|---|---|
| Overall diameter | 22.8 in (578 mm) |
| Sidewall height | 4.9 in (124 mm) |
| Circumference | 71.5 in (1816 mm) |
| Revolutions per mile | 886 |
Typical Fitment
155/80R13 is most often found on subcompact cars. Always confirm against the door-jamb placard or owner manual before fitting.
Plus-Sizing Alternatives
These sizes keep the overall diameter close to 155/80R13, so speedometer and gearing stay near stock:
| Size | Diameter | Diameter change |
|---|---|---|
| 165/75R13 | 22.74 in | -0.1% |
| 165/65R14 | 22.44 in | -1.4% |
| 175/55R15 | 22.58 in | -0.8% |
Speedometer Note
If you fit a 165/75R13 instead of 155/80R13, the diameter changes by -0.1%. A taller tire makes your speedometer read low — at a true 60 mph it would show roughly 60 mph. A shorter tire has the opposite effect, so the gauge reads high.
Use the tire calculator to compare 155/80R13 against any other size and see the exact diameter and speedometer difference.
Frequently Asked Questions
What does 155/80R13 mean?
155/80R13 means a 155 mm wide tire with a 80% sidewall aspect ratio mounted on a 13-inch rim. The aspect ratio is the sidewall height as a percentage of the width.
Can I plus-size from 155/80R13?
Yes, as long as the replacement keeps the overall diameter close to stock so the speedometer stays accurate. Common plus-size moves from 155/80R13 are 165/75R13, 165/65R14, 175/55R15.
Will 155/80R13 affect my speedometer?
Only if it differs in diameter from your original size. A taller tire reads low; a shorter tire reads high. Compare the two sizes with the calculator to find the percentage.