225/40R17 tire size
A 225/40R17 tire is 24.09 inches (611.8 mm) tall, 8.86 in (225 mm) wide and fits a 17-inch wheel. In inch notation it is roughly a 24.1x8.9R17.
| Overall diameter | 24.09 in | 611.8 mm |
|---|---|---|
| Section width | 8.86 in | 225 mm |
| Sidewall height | 3.54 in | 90.0 mm |
| Circumference | 75.67 in | 1,922 mm |
| Revolutions | 837.3 per mile | 520.3 per km |
| Rim diameter | 17 in | 431.8 mm |
Compare 225/40R17 with another size
Alternative sizes on the same 17-inch wheel
Sizes in use within ±3 % of the overall diameter of 225/40R17:
Plus and minus sizes for 225/40R17
| Size | Wheel | Diameter | Difference |
|---|---|---|---|
| 195/60R15 | Minus 2 (15 in) | 24.21 in | +0.52% |
| 205/55R15 | Minus 2 (15 in) | 23.88 in | −0.87% |
| 225/50R15 | Minus 2 (15 in) | 23.86 in | −0.95% |
| 205/60R15 | Minus 2 (15 in) | 24.69 in | +2.48% |
| 205/50R16 | Minus 1 (16 in) | 24.07 in | −0.07% |
| 225/45R16 | Minus 1 (16 in) | 23.97 in | −0.47% |
| 195/55R16 | Minus 1 (16 in) | 24.44 in | +1.49% |
| 215/50R16 | Minus 1 (16 in) | 24.46 in | +1.57% |
| 225/35R18 | Plus 1 (18 in) | 24.20 in | +0.47% |
| 215/35R18 | Plus 1 (18 in) | 23.93 in | −0.67% |
| 205/40R18 | Plus 1 (18 in) | 24.46 in | +1.54% |
| 235/35R18 | Plus 1 (18 in) | 24.48 in | +1.62% |
| 245/30R19 | Plus 2 (19 in) | 24.79 in | +2.91% |
Vehicles approved with 225/40R17 tires
Models whose Swiss type approval lists 225/40R17 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 17-inch sizes
Reading the 225/40R17 size
- 225 — section width in millimetres (8.86 in).
- 40 — aspect ratio: the sidewall is 40 % of the width, 90.0 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.