285/65R17 tire size
A 285/65R17 tire is 31.59 inches (802.3 mm) tall, 11.22 in (285 mm) wide and fits a 17-inch wheel. In inch notation it is roughly a 31.6x11.2R17 — a "32-inch" tire.
| Overall diameter | 31.59 in | 802.3 mm |
|---|---|---|
| Section width | 11.22 in | 285 mm |
| Sidewall height | 7.29 in | 185.3 mm |
| Circumference | 99.23 in | 2,520 mm |
| Revolutions | 638.5 per mile | 396.7 per km |
| Rim diameter | 17 in | 431.8 mm |
Compare 285/65R17 with another size
Alternative sizes on the same 17-inch wheel
Sizes in use within ±3 % of the overall diameter of 285/65R17:
Plus and minus sizes for 285/65R17
| Size | Wheel | Diameter | Difference |
|---|---|---|---|
| 265/75R16 | Minus 1 (16 in) | 31.65 in | +0.20% |
| 275/70R16 | Minus 1 (16 in) | 31.16 in | −1.36% |
| 265/65R18 | Plus 1 (18 in) | 31.56 in | −0.07% |
| 285/60R18 | Plus 1 (18 in) | 31.46 in | −0.39% |
| 255/70R18 | Plus 1 (18 in) | 32.06 in | +1.48% |
| 275/65R18 | Plus 1 (18 in) | 32.07 in | +1.55% |
| 255/65R19 | Plus 2 (19 in) | 32.05 in | +1.47% |
| 255/60R19 | Plus 2 (19 in) | 31.05 in | −1.71% |
| 275/55R19 | Plus 2 (19 in) | 30.91 in | −2.14% |
| 275/55R20 | Plus 3 (20 in) | 31.91 in | +1.02% |
| 285/50R20 | Plus 3 (20 in) | 31.22 in | −1.16% |
| 255/60R20 | Plus 3 (20 in) | 32.05 in | +1.46% |
| 255/55R20 | Plus 3 (20 in) | 31.04 in | −1.72% |
Vehicles approved with 285/65R17 tires
Models whose Swiss type approval lists 285/65R17 as a standard or optional size (15 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 285/65R17 size
- 285 — section width in millimetres (11.22 in).
- 65 — aspect ratio: the sidewall is 65 % of the width, 185.3 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.