285/45R22 tire size
A 285/45R22 tire is 32.10 inches (815.3 mm) tall, 11.22 in (285 mm) wide and fits a 22-inch wheel. In inch notation it is roughly a 32.1x11.2R22 — a "32-inch" tire.
| Overall diameter | 32.10 in | 815.3 mm |
|---|---|---|
| Section width | 11.22 in | 285 mm |
| Sidewall height | 5.05 in | 128.3 mm |
| Circumference | 100.84 in | 2,561 mm |
| Revolutions | 628.3 per mile | 390.4 per km |
| Rim diameter | 22 in | 558.8 mm |
Compare 285/45R22 with another size
Alternative sizes on the same 22-inch wheel
Sizes in use within ±3 % of the overall diameter of 285/45R22:
Plus and minus sizes for 285/45R22
| Size | Wheel | Diameter | Difference |
|---|---|---|---|
| 255/60R20 | Minus 2 (20 in) | 32.05 in | −0.16% |
| 275/55R20 | Minus 2 (20 in) | 31.91 in | −0.59% |
| 285/55R20 | Minus 2 (20 in) | 32.34 in | +0.76% |
| 265/60R20 | Minus 2 (20 in) | 32.52 in | +1.31% |
| 275/50R21 | Minus 1 (21 in) | 31.83 in | −0.85% |
| 325/40R21 | Minus 1 (21 in) | 31.24 in | −2.69% |
| 285/40R23 | Plus 1 (23 in) | 31.98 in | −0.38% |
| 325/35R23 | Plus 1 (23 in) | 31.96 in | −0.44% |
| 275/40R23 | Plus 1 (23 in) | 31.66 in | −1.36% |
| 305/35R23 | Plus 1 (23 in) | 31.41 in | −2.16% |
Vehicles approved with 285/45R22 tires
Models whose Swiss type approval lists 285/45R22 as a standard or optional size (226 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 22-inch sizes
Reading the 285/45R22 size
- 285 — section width in millimetres (11.22 in).
- 45 — aspect ratio: the sidewall is 45 % of the width, 128.3 mm.
- R — radial construction (ZR on the sidewall means a high-speed rated radial; the dimensions are the same).
- 22 — fits a 22-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.