165/55R14 tire size
A 165/55R14 tire is 21.15 inches (537.1 mm) tall, 6.50 in (165 mm) wide and fits a 14-inch wheel. In inch notation it is roughly a 21.1x6.5R14.
| Overall diameter | 21.15 in | 537.1 mm |
|---|---|---|
| Section width | 6.50 in | 165 mm |
| Sidewall height | 3.57 in | 90.7 mm |
| Circumference | 66.43 in | 1,687 mm |
| Revolutions | 953.8 per mile | 592.6 per km |
| Rim diameter | 14 in | 355.6 mm |
Compare 165/55R14 with another size
Alternative sizes on the same 14-inch wheel
Sizes in use within ±3 % of the overall diameter of 165/55R14:
Plus and minus sizes for 165/55R14
Vehicles approved with 165/55R14 tires
Models whose Swiss type approval lists 165/55R14 as a standard or optional size (7 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 14-inch sizes
Reading the 165/55R14 size
- 165 — section width in millimetres (6.50 in).
- 55 — aspect ratio: the sidewall is 55 % of the width, 90.7 mm.
- R — radial construction (ZR on the sidewall means a high-speed rated radial; the dimensions are the same).
- 14 — fits a 14-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.