Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 255/60-18 | 235/70-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.05 (763.2) | 29.95 (760.8) | -0.09 (-2.4) -0.3% |
| Width inches (mm) | 10.04 (255) | 9.25 (235) | -0.79 (-20) -7.8% |
| Circum. inches (mm) | 94.4 (2397.66) | 94.1 (2390.12) | -0.3 (-7.54) -0.3% |
| Sidewall Height inches (mm) | 6.02 (153) | 6.48 (164.5) | 0.45 (11.5) 7.5% |
| Revolutions per mile (km) | 671.21 (417.07) | 673.33 (418.39) | 2.12 (1.32) 0.3% |
235/70-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.94 mph (32.09 km/h) |
| 25 mph (40.23 km/h) | 24.92 mph (40.11 km/h) |
| 30 mph (48.28 km/h) | 29.91 mph (48.13 km/h) |
| 35 mph (56.33 km/h) | 34.89 mph (56.15 km/h) |
| 40 mph (64.37 km/h) | 39.87 mph (64.17 km/h) |
| 45 mph (72.42 km/h) | 44.86 mph (72.19 km/h) |
| 50 mph (80.47 km/h) | 49.84 mph (80.21 km/h) |
| 55 mph (88.51 km/h) | 54.83 mph (88.24 km/h) |
| 60 mph (96.56 km/h) | 59.81 mph (96.26 km/h) |
| 65 mph (104.61 km/h) | 64.8 mph (104.28 km/h) |
| 70 mph (112.65 km/h) | 69.78 mph (112.3 km/h) |
| 75 mph (120.7 km/h) | 74.76 mph (120.32 km/h) |
| 80 mph (128.75 km/h) | 79.75 mph (128.34 km/h) |
| 85 mph (136.79 km/h) | 84.73 mph (136.36 km/h) |
| 90 mph (144.84 km/h) | 89.72 mph (144.39 km/h) |
| 95 mph (152.89 km/h) | 94.7 mph (152.41 km/h) |
| 100 mph (160.93 km/h) | 99.69 mph (160.43 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1713 | 1991 | 2144 | 2238 | 2341 | 2413 | 2494 | 2588 | 2720 | 2851 | 2997 | 3113 | 3325 | 3558 | 3741 | 3857 | 3923 | 4163 | 4499 | 5228 |
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