245/75R17 tire size
A 245/75R17 tire is 31.47 inches (799.3 mm) tall, 9.65 in (245 mm) wide and fits a 17-inch wheel. In inch notation it is roughly a 31.5x9.6R17 — a "31-inch" tire.
| Overall diameter | 31.47 in | 799.3 mm |
|---|---|---|
| Section width | 9.65 in | 245 mm |
| Sidewall height | 7.23 in | 183.8 mm |
| Circumference | 98.86 in | 2,511 mm |
| Revolutions | 640.9 per mile | 398.2 per km |
| Rim diameter | 17 in | 431.8 mm |
Compare 245/75R17 with another size
Alternative sizes on the same 17-inch wheel
Sizes in use within ±3 % of the overall diameter of 245/75R17:
Plus and minus sizes for 245/75R17
| Size | Wheel | Diameter | Difference |
|---|---|---|---|
| 265/75R16 | Minus 1 (16 in) | 31.65 in | +0.58% |
| 235/85R16 | Minus 1 (16 in) | 31.73 in | +0.83% |
| 275/70R16 | Minus 1 (16 in) | 31.16 in | −0.99% |
| 235/80R16 | Minus 1 (16 in) | 30.80 in | −2.11% |
| 285/60R18 | Plus 1 (18 in) | 31.46 in | −0.01% |
| 265/65R18 | Plus 1 (18 in) | 31.56 in | +0.30% |
| 255/65R18 | Plus 1 (18 in) | 31.05 in | −1.33% |
| 275/60R18 | Plus 1 (18 in) | 30.99 in | −1.51% |
| 255/60R19 | Plus 2 (19 in) | 31.05 in | −1.34% |
| 235/65R19 | Plus 2 (19 in) | 31.03 in | −1.40% |
| 275/55R19 | Plus 2 (19 in) | 30.91 in | −1.78% |
| 255/65R19 | Plus 2 (19 in) | 32.05 in | +1.85% |
| 285/50R20 | Plus 3 (20 in) | 31.22 in | −0.79% |
| 235/60R20 | Plus 3 (20 in) | 31.10 in | −1.16% |
| 255/55R20 | Plus 3 (20 in) | 31.04 in | −1.35% |
| 275/55R20 | Plus 3 (20 in) | 31.91 in | +1.40% |
Vehicles approved with 245/75R17 tires
Models whose Swiss type approval lists 245/75R17 as a standard or optional size (165 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 245/75R17 size
- 245 — section width in millimetres (9.65 in).
- 75 — aspect ratio: the sidewall is 75 % of the width, 183.8 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.