175/55R16 tire size
A 175/55R16 tire is 23.58 inches (598.9 mm) tall, 6.89 in (175 mm) wide and fits a 16-inch wheel. In inch notation it is roughly a 23.6x6.9R16.
| Overall diameter | 23.58 in | 598.9 mm |
|---|---|---|
| Section width | 6.89 in | 175 mm |
| Sidewall height | 3.79 in | 96.3 mm |
| Circumference | 74.07 in | 1,881 mm |
| Revolutions | 855.4 per mile | 531.5 per km |
| Rim diameter | 16 in | 406.4 mm |
Compare 175/55R16 with another size
Alternative sizes on the same 16-inch wheel
Sizes in use within ±3 % of the overall diameter of 175/55R16:
Plus and minus sizes for 175/55R16
| Size | Wheel | Diameter | Difference |
|---|---|---|---|
| 175/70R14 | Minus 2 (14 in) | 23.65 in | +0.28% |
| 185/65R14 | Minus 2 (14 in) | 23.47 in | −0.47% |
| 195/60R14 | Minus 2 (14 in) | 23.21 in | −1.55% |
| 195/65R14 | Minus 2 (14 in) | 23.98 in | +1.70% |
| 215/50R15 | Minus 1 (15 in) | 23.46 in | −0.48% |
| 165/65R15 | Minus 1 (15 in) | 23.44 in | −0.57% |
| 195/55R15 | Minus 1 (15 in) | 23.44 in | −0.57% |
| 185/60R15 | Minus 1 (15 in) | 23.74 in | +0.68% |
| 185/45R17 | Plus 1 (17 in) | 23.56 in | −0.10% |
| 205/40R17 | Plus 1 (17 in) | 23.46 in | −0.52% |
| 215/40R17 | Plus 1 (17 in) | 23.77 in | +0.82% |
| 195/45R17 | Plus 1 (17 in) | 23.91 in | +1.40% |
| 215/35R18 | Plus 2 (18 in) | 23.93 in | +1.47% |
| 225/35R18 | Plus 2 (18 in) | 24.20 in | +2.64% |
Vehicles approved with 175/55R16 tires
Models whose Swiss type approval lists 175/55R16 as a standard or optional size (21 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 16-inch sizes
Reading the 175/55R16 size
- 175 — section width in millimetres (6.89 in).
- 55 — aspect ratio: the sidewall is 55 % of the width, 96.3 mm.
- R — radial construction (ZR on the sidewall means a high-speed rated radial; the dimensions are the same).
- 16 — fits a 16-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.