255/65R17 tire size
A 255/65R17 tire is 30.05 inches (763.3 mm) tall, 10.04 in (255 mm) wide and fits a 17-inch wheel. In inch notation it is roughly a 30.1x10.0R17 — a "30-inch" tire.
| Overall diameter | 30.05 in | 763.3 mm |
|---|---|---|
| Section width | 10.04 in | 255 mm |
| Sidewall height | 6.53 in | 165.8 mm |
| Circumference | 94.41 in | 2,398 mm |
| Revolutions | 671.1 per mile | 417.0 per km |
| Rim diameter | 17 in | 431.8 mm |
Compare 255/65R17 with another size
Alternative sizes on the same 17-inch wheel
Sizes in use within ±3 % of the overall diameter of 255/65R17:
Plus and minus sizes for 255/65R17
| Size | Wheel | Diameter | Difference |
|---|---|---|---|
| 255/75R15 | Minus 2 (15 in) | 30.06 in | +0.03% |
| 265/70R15 | Minus 2 (15 in) | 29.61 in | −1.48% |
| 255/70R16 | Minus 1 (16 in) | 30.06 in | +0.01% |
| 235/75R16 | Minus 1 (16 in) | 29.88 in | −0.58% |
| 245/75R16 | Minus 1 (16 in) | 30.47 in | +1.39% |
| 245/70R16 | Minus 1 (16 in) | 29.50 in | −1.82% |
| 255/60R18 | Plus 1 (18 in) | 30.05 in | −0.01% |
| 235/65R18 | Plus 1 (18 in) | 30.03 in | −0.08% |
| 285/55R18 | Plus 1 (18 in) | 30.34 in | +0.97% |
| 265/60R18 | Plus 1 (18 in) | 30.52 in | +1.56% |
| 255/55R19 | Plus 2 (19 in) | 30.04 in | −0.03% |
| 235/60R19 | Plus 2 (19 in) | 30.10 in | +0.17% |
| 275/50R19 | Plus 2 (19 in) | 29.83 in | −0.75% |
| 265/55R19 | Plus 2 (19 in) | 30.48 in | +1.41% |
| 255/50R20 | Plus 3 (20 in) | 30.04 in | −0.04% |
| 285/45R20 | Plus 3 (20 in) | 30.10 in | +0.16% |
| 235/55R20 | Plus 3 (20 in) | 30.18 in | +0.42% |
| 275/45R20 | Plus 3 (20 in) | 29.74 in | −1.02% |
Vehicles approved with 255/65R17 tires
Models whose Swiss type approval lists 255/65R17 as a standard or optional size (25 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 255/65R17 size
- 255 — section width in millimetres (10.04 in).
- 65 — aspect ratio: the sidewall is 65 % of the width, 165.8 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.