Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 245/30-20 | 255/35-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.79 (655) | 27.03 (686.5) | 1.24 (31.5) 4.8% |
| Width inches (mm) | 9.65 (245) | 10.04 (255) | 0.39 (10) 4.1% |
| Circum. inches (mm) | 81.01 (2057.74) | 84.91 (2156.7) | 3.9 (98.96) 4.8% |
| Sidewall Height inches (mm) | 2.89 (73.5) | 3.51 (89.25) | 0.62 (15.75) 21.4% |
| Revolutions per mile (km) | 782.09 (485.97) | 746.21 (463.67) | -35.89 (-22.3) -4.6% |
255/35-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.96 mph (33.73 km/h) |
| 25 mph (40.23 km/h) | 26.2 mph (42.17 km/h) |
| 30 mph (48.28 km/h) | 31.44 mph (50.6 km/h) |
| 35 mph (56.33 km/h) | 36.68 mph (59.04 km/h) |
| 40 mph (64.37 km/h) | 41.92 mph (67.47 km/h) |
| 45 mph (72.42 km/h) | 47.16 mph (75.9 km/h) |
| 50 mph (80.47 km/h) | 52.4 mph (84.34 km/h) |
| 55 mph (88.51 km/h) | 57.65 mph (92.77 km/h) |
| 60 mph (96.56 km/h) | 62.89 mph (101.2 km/h) |
| 65 mph (104.61 km/h) | 68.13 mph (109.64 km/h) |
| 70 mph (112.65 km/h) | 73.37 mph (118.07 km/h) |
| 75 mph (120.7 km/h) | 78.61 mph (126.51 km/h) |
| 80 mph (128.75 km/h) | 83.85 mph (134.94 km/h) |
| 85 mph (136.79 km/h) | 89.09 mph (143.37 km/h) |
| 90 mph (144.84 km/h) | 94.33 mph (151.81 km/h) |
| 95 mph (152.89 km/h) | 99.57 mph (160.24 km/h) |
| 100 mph (160.93 km/h) | 104.81 mph (168.67 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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