235/70R17 tire size
A 235/70R17 tire is 29.95 inches (760.8 mm) tall, 9.25 in (235 mm) wide and fits a 17-inch wheel. In inch notation it is roughly a 30.0x9.3R17 — a "30-inch" tire.
| Overall diameter | 29.95 in | 760.8 mm |
|---|---|---|
| Section width | 9.25 in | 235 mm |
| Sidewall height | 6.48 in | 164.5 mm |
| Circumference | 94.10 in | 2,390 mm |
| Revolutions | 673.3 per mile | 418.4 per km |
| Rim diameter | 17 in | 431.8 mm |
Compare 235/70R17 with another size
Alternative sizes on the same 17-inch wheel
Sizes in use within ±3 % of the overall diameter of 235/70R17:
Plus and minus sizes for 235/70R17
| Size | Wheel | Diameter | Difference |
|---|---|---|---|
| 255/75R15 | Minus 2 (15 in) | 30.06 in | +0.35% |
| 265/70R15 | Minus 2 (15 in) | 29.61 in | −1.16% |
| 255/70R15 | Minus 2 (15 in) | 29.06 in | −3.00% |
| 235/75R16 | Minus 1 (16 in) | 29.88 in | −0.25% |
| 255/70R16 | Minus 1 (16 in) | 30.06 in | +0.34% |
| 215/80R16 | Minus 1 (16 in) | 29.54 in | −1.37% |
| 245/70R16 | Minus 1 (16 in) | 29.50 in | −1.50% |
| 235/65R18 | Plus 1 (18 in) | 30.03 in | +0.25% |
| 255/60R18 | Plus 1 (18 in) | 30.05 in | +0.32% |
| 245/60R18 | Plus 1 (18 in) | 29.57 in | −1.26% |
| 285/55R18 | Plus 1 (18 in) | 30.34 in | +1.30% |
| 255/55R19 | Plus 2 (19 in) | 30.04 in | +0.30% |
| 275/50R19 | Plus 2 (19 in) | 29.83 in | −0.42% |
| 235/60R19 | Plus 2 (19 in) | 30.10 in | +0.50% |
| 205/65R19 | Plus 2 (19 in) | 29.49 in | −1.54% |
| 255/50R20 | Plus 3 (20 in) | 30.04 in | +0.29% |
| 285/45R20 | Plus 3 (20 in) | 30.10 in | +0.49% |
| 275/45R20 | Plus 3 (20 in) | 29.74 in | −0.70% |
| 235/55R20 | Plus 3 (20 in) | 30.18 in | +0.75% |
Vehicles approved with 235/70R17 tires
Models whose Swiss type approval lists 235/70R17 as a standard or optional size (58 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 235/70R17 size
- 235 — section width in millimetres (9.25 in).
- 70 — aspect ratio: the sidewall is 70 % of the width, 164.5 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.