Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 255/35-18 | 255/35-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.03 (635.7) | 27.03 (686.5) | 2 (50.8) 8% |
| Width inches (mm) | 10.04 (255) | 10.04 (255) | 0 (0) 0% |
| Circum. inches (mm) | 78.63 (1997.11) | 84.91 (2156.7) | 6.28 (159.59) 8% |
| Sidewall Height inches (mm) | 3.51 (89.25) | 3.51 (89.25) | 0 (0) 0% |
| Revolutions per mile (km) | 805.84 (500.72) | 746.21 (463.67) | -59.63 (-37.05) -7.4% |
255/35-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.6 mph (34.76 km/h) |
| 25 mph (40.23 km/h) | 27 mph (43.45 km/h) |
| 30 mph (48.28 km/h) | 32.4 mph (52.14 km/h) |
| 35 mph (56.33 km/h) | 37.8 mph (60.83 km/h) |
| 40 mph (64.37 km/h) | 43.2 mph (69.52 km/h) |
| 45 mph (72.42 km/h) | 48.6 mph (78.21 km/h) |
| 50 mph (80.47 km/h) | 54 mph (86.9 km/h) |
| 55 mph (88.51 km/h) | 59.4 mph (95.59 km/h) |
| 60 mph (96.56 km/h) | 64.79 mph (104.28 km/h) |
| 65 mph (104.61 km/h) | 70.19 mph (112.97 km/h) |
| 70 mph (112.65 km/h) | 75.59 mph (121.66 km/h) |
| 75 mph (120.7 km/h) | 80.99 mph (130.35 km/h) |
| 80 mph (128.75 km/h) | 86.39 mph (139.04 km/h) |
| 85 mph (136.79 km/h) | 91.79 mph (147.73 km/h) |
| 90 mph (144.84 km/h) | 97.19 mph (156.42 km/h) |
| 95 mph (152.89 km/h) | 102.59 mph (165.11 km/h) |
| 100 mph (160.93 km/h) | 107.99 mph (173.8 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1899 | 2206 | 2376 | 2481 | 2594 | 2675 | 2764 | 2869 | 3014 | 3160 | 3321 | 3450 | 3685 | 3943 | 4145 | 4275 | 4347 | 4614 | 4986 | 5794 |
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