255/55R17 tire size
A 255/55R17 tire is 28.04 inches (712.3 mm) tall, 10.04 in (255 mm) wide and fits a 17-inch wheel. In inch notation it is roughly a 28.0x10.0R17 — a "28-inch" tire.
| Overall diameter | 28.04 in | 712.3 mm |
|---|---|---|
| Section width | 10.04 in | 255 mm |
| Sidewall height | 5.52 in | 140.3 mm |
| Circumference | 88.10 in | 2,238 mm |
| Revolutions | 719.2 per mile | 446.9 per km |
| Rim diameter | 17 in | 431.8 mm |
Compare 255/55R17 with another size
Alternative sizes on the same 17-inch wheel
Sizes in use within ±3 % of the overall diameter of 255/55R17:
Plus and minus sizes for 255/55R17
| Size | Wheel | Diameter | Difference |
|---|---|---|---|
| 235/70R15 | Minus 2 (15 in) | 27.95 in | −0.32% |
| 225/75R15 | Minus 2 (15 in) | 28.29 in | +0.87% |
| 225/70R15 | Minus 2 (15 in) | 27.40 in | −2.29% |
| 235/75R15 | Minus 2 (15 in) | 28.88 in | +2.98% |
| 235/65R16 | Minus 1 (16 in) | 28.03 in | −0.06% |
| 225/70R16 | Minus 1 (16 in) | 28.40 in | +1.28% |
| 245/60R16 | Minus 1 (16 in) | 27.57 in | −1.67% |
| 225/65R16 | Minus 1 (16 in) | 27.52 in | −1.88% |
| 255/50R18 | Plus 1 (18 in) | 28.04 in | −0.01% |
| 285/45R18 | Plus 1 (18 in) | 28.10 in | +0.20% |
| 235/55R18 | Plus 1 (18 in) | 28.18 in | +0.48% |
| 275/45R18 | Plus 1 (18 in) | 27.74 in | −1.07% |
| 255/45R19 | Plus 2 (19 in) | 28.04 in | −0.03% |
| 285/40R19 | Plus 2 (19 in) | 27.98 in | −0.24% |
| 225/50R19 | Plus 2 (19 in) | 27.86 in | −0.66% |
| 235/50R19 | Plus 2 (19 in) | 28.25 in | +0.74% |
| 255/40R20 | Plus 3 (20 in) | 28.03 in | −0.04% |
| 295/35R20 | Plus 3 (20 in) | 28.13 in | +0.31% |
| 285/35R20 | Plus 3 (20 in) | 27.85 in | −0.67% |
| 235/45R20 | Plus 3 (20 in) | 28.33 in | +1.01% |
Vehicles approved with 255/55R17 tires
Models whose Swiss type approval lists 255/55R17 as a standard or optional size (82 approvals in total). Always check your own vehicle's placard or papers.
Source: Swiss Federal Roads Office (FEDRO/ASTRA), open government data. Original data (downloaded 2026-09-29). Data processed by us; errors in processing are ours, not the publisher's.
Nearby 17-inch sizes
Reading the 255/55R17 size
- 255 — section width in millimetres (10.04 in).
- 55 — aspect ratio: the sidewall is 55 % of the width, 140.3 mm.
- R — radial construction (ZR on the sidewall means a high-speed rated radial; the dimensions are the same).
- 17 — fits a 17-inch diameter wheel.
The load index and speed rating (for example 91V) follow the size on the sidewall. They must meet at least the values on your vehicle's tire placard.