Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 145/60-20 | 275/35-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.85 (682) | 27.58 (700.5) | 0.73 (18.5) 2.7% |
| Width inches (mm) | 5.71 (145) | 10.83 (275) | 5.12 (130) 89.7% |
| Circum. inches (mm) | 84.35 (2142.57) | 86.64 (2200.69) | 2.29 (58.12) 2.7% |
| Sidewall Height inches (mm) | 3.43 (87) | 3.79 (96.25) | 0.36 (9.25) 10.6% |
| Revolutions per mile (km) | 751.13 (466.73) | 731.29 (454.4) | -19.84 (-12.33) -2.6% |
275/35-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.54 mph (33.06 km/h) |
| 25 mph (40.23 km/h) | 25.68 mph (41.33 km/h) |
| 30 mph (48.28 km/h) | 30.81 mph (49.59 km/h) |
| 35 mph (56.33 km/h) | 35.95 mph (57.86 km/h) |
| 40 mph (64.37 km/h) | 41.09 mph (66.12 km/h) |
| 45 mph (72.42 km/h) | 46.22 mph (74.39 km/h) |
| 50 mph (80.47 km/h) | 51.36 mph (82.65 km/h) |
| 55 mph (88.51 km/h) | 56.49 mph (90.92 km/h) |
| 60 mph (96.56 km/h) | 61.63 mph (99.18 km/h) |
| 65 mph (104.61 km/h) | 66.76 mph (107.45 km/h) |
| 70 mph (112.65 km/h) | 71.9 mph (115.71 km/h) |
| 75 mph (120.7 km/h) | 77.03 mph (123.98 km/h) |
| 80 mph (128.75 km/h) | 82.17 mph (132.24 km/h) |
| 85 mph (136.79 km/h) | 87.31 mph (140.51 km/h) |
| 90 mph (144.84 km/h) | 92.44 mph (148.77 km/h) |
| 95 mph (152.89 km/h) | 97.58 mph (157.04 km/h) |
| 100 mph (160.93 km/h) | 102.71 mph (165.3 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1861 | 2162 | 2328 | 2431 | 2542 | 2621 | 2708 | 2811 | 2954 | 3096 | 3255 | 3381 | 3611 | 3865 | 4063 | 4189 | 4260 | 4522 | 4886 | 5678 |
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