185/55R16 tire size
A 185/55R16 tire is 24.01 inches (609.9 mm) tall, 7.28 in (185 mm) wide and fits a 16-inch wheel. In inch notation it is roughly a 24.0x7.3R16.
| Overall diameter | 24.01 in | 609.9 mm |
|---|---|---|
| Section width | 7.28 in | 185 mm |
| Sidewall height | 4.01 in | 101.8 mm |
| Circumference | 75.44 in | 1,916 mm |
| Revolutions | 839.9 per mile | 521.9 per km |
| Rim diameter | 16 in | 406.4 mm |
Compare 185/55R16 with another size
Alternative sizes on the same 16-inch wheel
Sizes in use within ±3 % of the overall diameter of 185/55R16:
Plus and minus sizes for 185/55R16
| Size | Wheel | Diameter | Difference |
|---|---|---|---|
| 195/65R14 | Minus 2 (14 in) | 23.98 in | −0.13% |
| 185/70R14 | Minus 2 (14 in) | 24.20 in | +0.77% |
| 175/70R14 | Minus 2 (14 in) | 23.65 in | −1.52% |
| 165/80R14 | Minus 2 (14 in) | 24.39 in | +1.59% |
| 175/65R15 | Minus 1 (15 in) | 23.96 in | −0.23% |
| 205/55R15 | Minus 1 (15 in) | 23.88 in | −0.56% |
| 225/50R15 | Minus 1 (15 in) | 23.86 in | −0.64% |
| 195/60R15 | Minus 1 (15 in) | 24.21 in | +0.84% |
| 225/40R17 | Plus 1 (17 in) | 24.09 in | +0.31% |
| 195/45R17 | Plus 1 (17 in) | 23.91 in | −0.43% |
| 215/40R17 | Plus 1 (17 in) | 23.77 in | −1.00% |
| 205/45R17 | Plus 1 (17 in) | 24.26 in | +1.05% |
| 215/35R18 | Plus 2 (18 in) | 23.93 in | −0.36% |
| 225/35R18 | Plus 2 (18 in) | 24.20 in | +0.79% |
| 205/40R18 | Plus 2 (18 in) | 24.46 in | +1.85% |
| 235/35R18 | Plus 2 (18 in) | 24.48 in | +1.93% |
Vehicles approved with 185/55R16 tires
Models whose Swiss type approval lists 185/55R16 as a standard or optional size (430 approvals in total). Always check your own vehicle's placard or papers.
- Suzuki Swift
- Honda Jazz
- Renault Modus
- Nissan Note
- Nissan Micra
- Suzuki Baleno
- BYD Dolphin
- Honda Insight
- Opel Meriva
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 185/55R16 size
- 185 — section width in millimetres (7.28 in).
- 55 — aspect ratio: the sidewall is 55 % of the width, 101.8 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.