225/55R17C tire size
A 225/55R17C (C = commercial / van) tire is 26.74 inches (679.3 mm) tall, 8.86 in (225 mm) wide and fits a 17-inch wheel. In inch notation it is roughly a 26.7x8.9R17.
| Overall diameter | 26.74 in | 679.3 mm |
|---|---|---|
| Section width | 8.86 in | 225 mm |
| Sidewall height | 4.87 in | 123.8 mm |
| Circumference | 84.02 in | 2,134 mm |
| Revolutions | 754.1 per mile | 468.6 per km |
| Rim diameter | 17 in | 431.8 mm |
Compare 225/55R17C with another size
Alternative sizes on the same 17-inch wheel
Sizes in use within ±3 % of the overall diameter of 225/55R17C:
Plus and minus sizes for 225/55R17C
| Size | Wheel | Diameter | Difference |
|---|---|---|---|
| 215/70R15 | Minus 2 (15 in) | 26.85 in | +0.40% |
| 255/60R15 | Minus 2 (15 in) | 27.05 in | +1.13% |
| 205/70R15 | Minus 2 (15 in) | 26.30 in | −1.66% |
| 195/80R15 | Minus 2 (15 in) | 27.28 in | +2.02% |
| 195/70R16 | Minus 1 (16 in) | 26.75 in | +0.01% |
| 225/60R16 | Minus 1 (16 in) | 26.63 in | −0.43% |
| 245/55R16 | Minus 1 (16 in) | 26.61 in | −0.50% |
| 205/65R16 | Minus 1 (16 in) | 26.49 in | −0.94% |
| 245/45R18 | Plus 1 (18 in) | 26.68 in | −0.24% |
| 275/40R18 | Plus 1 (18 in) | 26.66 in | −0.31% |
| 225/50R18 | Plus 1 (18 in) | 26.86 in | +0.43% |
| 205/55R18 | Plus 1 (18 in) | 26.88 in | +0.50% |
| 245/40R19 | Plus 2 (19 in) | 26.72 in | −0.10% |
| 195/50R19 | Plus 2 (19 in) | 26.68 in | −0.25% |
| 275/35R19 | Plus 2 (19 in) | 26.58 in | −0.62% |
| 225/45R19 | Plus 2 (19 in) | 26.97 in | +0.85% |
| 245/35R20 | Plus 3 (20 in) | 26.75 in | +0.03% |
| 275/30R20 | Plus 3 (20 in) | 26.50 in | −0.93% |
| 235/35R20 | Plus 3 (20 in) | 26.48 in | −1.00% |
| 255/35R20 | Plus 3 (20 in) | 27.03 in | +1.06% |
Vehicles approved with 225/55R17C tires
Models whose Swiss type approval lists 225/55R17C as a standard or optional size (259 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 225/55R17C size
- 225 — section width in millimetres (8.86 in).
- 55 — aspect ratio: the sidewall is 55 % of the width, 123.8 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.
- C — commercial (van) construction with a higher load capacity at higher pressure.
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.