Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 305/35-18 | 285/35-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.41 (670.7) | 25.85 (656.7) | -0.55 (-14) -2.1% |
| Width inches (mm) | 12.01 (305) | 11.22 (285) | -0.79 (-20) -6.6% |
| Circum. inches (mm) | 82.96 (2107.07) | 81.22 (2063.08) | -1.73 (-43.98) -2.1% |
| Sidewall Height inches (mm) | 4.2 (106.75) | 3.93 (99.75) | -0.28 (-7) -6.6% |
| Revolutions per mile (km) | 763.78 (474.59) | 780.07 (484.71) | 16.28 (10.12) 2.1% |
285/35-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.58 mph (31.52 km/h) |
| 25 mph (40.23 km/h) | 24.48 mph (39.39 km/h) |
| 30 mph (48.28 km/h) | 29.37 mph (47.27 km/h) |
| 35 mph (56.33 km/h) | 34.27 mph (55.15 km/h) |
| 40 mph (64.37 km/h) | 39.17 mph (63.03 km/h) |
| 45 mph (72.42 km/h) | 44.06 mph (70.91 km/h) |
| 50 mph (80.47 km/h) | 48.96 mph (78.79 km/h) |
| 55 mph (88.51 km/h) | 53.85 mph (86.67 km/h) |
| 60 mph (96.56 km/h) | 58.75 mph (94.55 km/h) |
| 65 mph (104.61 km/h) | 63.64 mph (102.42 km/h) |
| 70 mph (112.65 km/h) | 68.54 mph (110.3 km/h) |
| 75 mph (120.7 km/h) | 73.43 mph (118.18 km/h) |
| 80 mph (128.75 km/h) | 78.33 mph (126.06 km/h) |
| 85 mph (136.79 km/h) | 83.23 mph (133.94 km/h) |
| 90 mph (144.84 km/h) | 88.12 mph (141.82 km/h) |
| 95 mph (152.89 km/h) | 93.02 mph (149.7 km/h) |
| 100 mph (160.93 km/h) | 97.91 mph (157.58 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1985 | 2306 | 2484 | 2593 | 2712 | 2796 | 2889 | 2999 | 3151 | 3303 | 3472 | 3607 | 3852 | 4122 | 4333 | 4469 | 4545 | 4823 | 5212 | 6057 |
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