Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 285/25-20 | 285/35-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.61 (650.5) | 27.85 (707.5) | 2.24 (57) 8.8% |
| Width inches (mm) | 11.22 (285) | 11.22 (285) | 0 (0) 0% |
| Circum. inches (mm) | 80.46 (2043.61) | 87.51 (2222.68) | 7.05 (179.07) 8.8% |
| Sidewall Height inches (mm) | 2.81 (71.25) | 3.93 (99.75) | 1.12 (28.5) 40% |
| Revolutions per mile (km) | 787.5 (489.33) | 724.06 (449.91) | -63.45 (-39.42) -8.1% |
285/35-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.75 mph (35.01 km/h) |
| 25 mph (40.23 km/h) | 27.19 mph (43.76 km/h) |
| 30 mph (48.28 km/h) | 32.63 mph (52.51 km/h) |
| 35 mph (56.33 km/h) | 38.07 mph (61.26 km/h) |
| 40 mph (64.37 km/h) | 43.5 mph (70.01 km/h) |
| 45 mph (72.42 km/h) | 48.94 mph (78.77 km/h) |
| 50 mph (80.47 km/h) | 54.38 mph (87.52 km/h) |
| 55 mph (88.51 km/h) | 59.82 mph (96.27 km/h) |
| 60 mph (96.56 km/h) | 65.26 mph (105.02 km/h) |
| 65 mph (104.61 km/h) | 70.7 mph (113.77 km/h) |
| 70 mph (112.65 km/h) | 76.13 mph (122.53 km/h) |
| 75 mph (120.7 km/h) | 81.57 mph (131.28 km/h) |
| 80 mph (128.75 km/h) | 87.01 mph (140.03 km/h) |
| 85 mph (136.79 km/h) | 92.45 mph (148.78 km/h) |
| 90 mph (144.84 km/h) | 97.89 mph (157.53 km/h) |
| 95 mph (152.89 km/h) | 103.32 mph (166.28 km/h) |
| 100 mph (160.93 km/h) | 108.76 mph (175.04 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1843 | 2141 | 2305 | 2407 | 2517 | 2595 | 2682 | 2783 | 2925 | 3066 | 3223 | 3348 | 3575 | 3826 | 4022 | 4148 | 4218 | 4477 | 4838 | 5622 |
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