245/55R17 tire size
A 245/55R17 tire is 27.61 inches (701.3 mm) tall, 9.65 in (245 mm) wide and fits a 17-inch wheel. In inch notation it is roughly a 27.6x9.6R17 — a "28-inch" tire.
| Overall diameter | 27.61 in | 701.3 mm |
|---|---|---|
| Section width | 9.65 in | 245 mm |
| Sidewall height | 5.31 in | 134.8 mm |
| Circumference | 86.74 in | 2,203 mm |
| Revolutions | 730.5 per mile | 453.9 per km |
| Rim diameter | 17 in | 431.8 mm |
Compare 245/55R17 with another size
Alternative sizes on the same 17-inch wheel
Sizes in use within ±3 % of the overall diameter of 245/55R17:
Plus and minus sizes for 245/55R17
| Size | Wheel | Diameter | Difference |
|---|---|---|---|
| 215/75R15 | Minus 2 (15 in) | 27.70 in | +0.31% |
| 225/70R15 | Minus 2 (15 in) | 27.40 in | −0.76% |
| 235/70R15 | Minus 2 (15 in) | 27.95 in | +1.24% |
| 255/60R15 | Minus 2 (15 in) | 27.05 in | −2.04% |
| 245/60R16 | Minus 1 (16 in) | 27.57 in | −0.13% |
| 225/65R16 | Minus 1 (16 in) | 27.52 in | −0.34% |
| 215/70R16 | Minus 1 (16 in) | 27.85 in | +0.87% |
| 235/65R16 | Minus 1 (16 in) | 28.03 in | +1.51% |
| 245/50R18 | Plus 1 (18 in) | 27.65 in | +0.13% |
| 225/55R18 | Plus 1 (18 in) | 27.74 in | +0.48% |
| 275/45R18 | Plus 1 (18 in) | 27.74 in | +0.48% |
| 265/45R18 | Plus 1 (18 in) | 27.39 in | −0.80% |
| 275/40R19 | Plus 2 (19 in) | 27.66 in | +0.19% |
| 245/45R19 | Plus 2 (19 in) | 27.68 in | +0.26% |
| 215/50R19 | Plus 2 (19 in) | 27.46 in | −0.53% |
| 225/50R19 | Plus 2 (19 in) | 27.86 in | +0.90% |
| 215/45R20 | Plus 3 (20 in) | 27.62 in | +0.03% |
| 275/35R20 | Plus 3 (20 in) | 27.58 in | −0.11% |
| 245/40R20 | Plus 3 (20 in) | 27.72 in | +0.38% |
| 235/40R20 | Plus 3 (20 in) | 27.40 in | −0.76% |
Vehicles approved with 245/55R17 tires
Models whose Swiss type approval lists 245/55R17 as a standard or optional size (262 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
- 225/45R17 (−9.6%)
- 225/50R17 (−6.3%)
- 225/55R17 (−3.1%)
- 225/60R17 (+0.1%)
- 225/65R17 (+3.3%)
- 235/45R17 (−8.3%)
- 235/50R17 (−4.9%)
- 235/55R17 (−1.6%)
- 235/60R17 (+1.8%)
- 235/65R17 (+5.1%)
- 245/45R17 (−7.0%)
- 245/50R17 (−3.5%)
- 245/65R17 (+7.0%)
- 255/45R17 (−5.7%)
- 255/55R17 (+1.6%)
- 255/60R17 (+5.2%)
- 255/65R17 (+8.8%)
- 265/65R17 (+10.7%)
Reading the 245/55R17 size
- 245 — section width in millimetres (9.65 in).
- 55 — aspect ratio: the sidewall is 55 % of the width, 134.8 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.