Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 175/85-16 | 245/55-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.71 (703.9) | 27.61 (701.3) | -0.1 (-2.6) -0.4% |
| Width inches (mm) | 6.89 (175) | 9.65 (245) | 2.76 (70) 40% |
| Circum. inches (mm) | 87.06 (2211.37) | 86.74 (2203.2) | -0.32 (-8.17) -0.4% |
| Sidewall Height inches (mm) | 5.86 (148.75) | 5.31 (134.75) | -0.55 (-14) -9.4% |
| Revolutions per mile (km) | 727.76 (452.21) | 730.46 (453.88) | 2.7 (1.68) 0.4% |
245/55-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.93 mph (32.07 km/h) |
| 25 mph (40.23 km/h) | 24.91 mph (40.09 km/h) |
| 30 mph (48.28 km/h) | 29.89 mph (48.1 km/h) |
| 35 mph (56.33 km/h) | 34.87 mph (56.12 km/h) |
| 40 mph (64.37 km/h) | 39.85 mph (64.14 km/h) |
| 45 mph (72.42 km/h) | 44.83 mph (72.15 km/h) |
| 50 mph (80.47 km/h) | 49.82 mph (80.17 km/h) |
| 55 mph (88.51 km/h) | 54.8 mph (88.19 km/h) |
| 60 mph (96.56 km/h) | 59.78 mph (96.2 km/h) |
| 65 mph (104.61 km/h) | 64.76 mph (104.22 km/h) |
| 70 mph (112.65 km/h) | 69.74 mph (112.24 km/h) |
| 75 mph (120.7 km/h) | 74.72 mph (120.26 km/h) |
| 80 mph (128.75 km/h) | 79.7 mph (128.27 km/h) |
| 85 mph (136.79 km/h) | 84.69 mph (136.29 km/h) |
| 90 mph (144.84 km/h) | 89.67 mph (144.31 km/h) |
| 95 mph (152.89 km/h) | 94.65 mph (152.32 km/h) |
| 100 mph (160.93 km/h) | 99.63 mph (160.34 km/h) |
| 2.35 | 2.73 | 2.94 | 3.07 | 3.21 | 3.31 | 3.42 | 3.55 | 3.73 | 3.91 | 4.11 | 4.27 | 4.56 | 4.88 | 5.13 | 5.29 | 5.38 | 5.71 | 6.17 | 7.17 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1859 | 2159 | 2326 | 2428 | 2539 | 2618 | 2705 | 2808 | 2950 | 3093 | 3251 | 3378 | 3607 | 3860 | 4058 | 4184 | 4256 | 4517 | 4881 | 5672 |
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