175/55R17 tire size
A 175/55R17 tire is 24.58 inches (624.3 mm) tall, 6.89 in (175 mm) wide and fits a 17-inch wheel. In inch notation it is roughly a 24.6x6.9R17.
| Overall diameter | 24.58 in | 624.3 mm |
|---|---|---|
| Section width | 6.89 in | 175 mm |
| Sidewall height | 3.79 in | 96.3 mm |
| Circumference | 77.22 in | 1,961 mm |
| Revolutions | 820.6 per mile | 509.9 per km |
| Rim diameter | 17 in | 431.8 mm |
Compare 175/55R17 with another size
Alternative sizes on the same 17-inch wheel
Sizes in use within ±3 % of the overall diameter of 175/55R17:
Plus and minus sizes for 175/55R17
| Size | Wheel | Diameter | Difference |
|---|---|---|---|
| 175/70R15 | Minus 2 (15 in) | 24.65 in | +0.27% |
| 205/60R15 | Minus 2 (15 in) | 24.69 in | +0.43% |
| 185/65R15 | Minus 2 (15 in) | 24.47 in | −0.45% |
| 225/55R15 | Minus 2 (15 in) | 24.74 in | +0.67% |
| 215/50R16 | Minus 1 (16 in) | 24.46 in | −0.46% |
| 195/55R16 | Minus 1 (16 in) | 24.44 in | −0.54% |
| 185/60R16 | Minus 1 (16 in) | 24.74 in | +0.66% |
| 225/50R16 | Minus 1 (16 in) | 24.86 in | +1.14% |
| 205/40R18 | Plus 1 (18 in) | 24.46 in | −0.50% |
| 215/40R18 | Plus 1 (18 in) | 24.77 in | +0.78% |
| 225/35R18 | Plus 1 (18 in) | 24.20 in | −1.54% |
| 225/40R18 | Plus 1 (18 in) | 25.09 in | +2.07% |
| 225/35R19 | Plus 2 (19 in) | 25.20 in | +2.53% |
Nearby 17-inch sizes
Reading the 175/55R17 size
- 175 — section width in millimetres (6.89 in).
- 55 — aspect ratio: the sidewall is 55 % of the width, 96.3 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.