185/50R17 tire size
A 185/50R17 tire is 24.28 inches (616.8 mm) tall, 7.28 in (185 mm) wide and fits a 17-inch wheel. In inch notation it is roughly a 24.3x7.3R17.
| Overall diameter | 24.28 in | 616.8 mm |
|---|---|---|
| Section width | 7.28 in | 185 mm |
| Sidewall height | 3.64 in | 92.5 mm |
| Circumference | 76.29 in | 1,938 mm |
| Revolutions | 830.5 per mile | 516.1 per km |
| Rim diameter | 17 in | 431.8 mm |
Compare 185/50R17 with another size
Alternative sizes on the same 17-inch wheel
Sizes in use within ±3 % of the overall diameter of 185/50R17:
Plus and minus sizes for 185/50R17
| Size | Wheel | Diameter | Difference |
|---|---|---|---|
| 195/60R15 | Minus 2 (15 in) | 24.21 in | −0.29% |
| 185/65R15 | Minus 2 (15 in) | 24.47 in | +0.76% |
| 175/65R15 | Minus 2 (15 in) | 23.96 in | −1.35% |
| 175/70R15 | Minus 2 (15 in) | 24.65 in | +1.49% |
| 175/60R16 | Minus 1 (16 in) | 24.27 in | −0.06% |
| 195/55R16 | Minus 1 (16 in) | 24.44 in | +0.66% |
| 215/50R16 | Minus 1 (16 in) | 24.46 in | +0.75% |
| 205/50R16 | Minus 1 (16 in) | 24.07 in | −0.88% |
| 225/35R18 | Plus 1 (18 in) | 24.20 in | −0.34% |
| 205/40R18 | Plus 1 (18 in) | 24.46 in | +0.71% |
| 235/35R18 | Plus 1 (18 in) | 24.48 in | +0.79% |
| 215/35R18 | Plus 1 (18 in) | 23.93 in | −1.48% |
Vehicles approved with 185/50R17 tires
Models whose Swiss type approval lists 185/50R17 as a standard or optional size (1,060 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 185/50R17 size
- 185 — section width in millimetres (7.28 in).
- 50 — aspect ratio: the sidewall is 50 % of the width, 92.5 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.