Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 285/70-20 | 35/12.5-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 35.71 (907) | 35.02 (889.6) | -0.69 (-17.4) -1.9% |
| Width inches (mm) | 11.22 (285) | 12.52 (318) | 1.3 (33) 11.6% |
| Circum. inches (mm) | 112.18 (2849.42) | 110.03 (2794.76) | -2.15 (-54.66) -1.9% |
| Sidewall Height inches (mm) | 7.85 (199.5) | 7.51 (190.8) | -0.34 (-8.7) -4.4% |
| Revolutions per mile (km) | 564.8 (350.95) | 575.84 (357.81) | 11.05 (6.86) 2% |
35/12.5-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.62 mph (31.57 km/h) |
| 25 mph (40.23 km/h) | 24.52 mph (39.46 km/h) |
| 30 mph (48.28 km/h) | 29.42 mph (47.35 km/h) |
| 35 mph (56.33 km/h) | 34.33 mph (55.25 km/h) |
| 40 mph (64.37 km/h) | 39.23 mph (63.14 km/h) |
| 45 mph (72.42 km/h) | 44.14 mph (71.03 km/h) |
| 50 mph (80.47 km/h) | 49.04 mph (78.92 km/h) |
| 55 mph (88.51 km/h) | 53.94 mph (86.82 km/h) |
| 60 mph (96.56 km/h) | 58.85 mph (94.71 km/h) |
| 65 mph (104.61 km/h) | 63.75 mph (102.6 km/h) |
| 70 mph (112.65 km/h) | 68.66 mph (110.49 km/h) |
| 75 mph (120.7 km/h) | 73.56 mph (118.39 km/h) |
| 80 mph (128.75 km/h) | 78.47 mph (126.28 km/h) |
| 85 mph (136.79 km/h) | 83.37 mph (134.17 km/h) |
| 90 mph (144.84 km/h) | 88.27 mph (142.06 km/h) |
| 95 mph (152.89 km/h) | 93.18 mph (149.95 km/h) |
| 100 mph (160.93 km/h) | 98.08 mph (157.85 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1465 | 1702 | 1833 | 1914 | 2002 | 2064 | 2133 | 2214 | 2326 | 2438 | 2563 | 2663 | 2844 | 3043 | 3199 | 3299 | 3355 | 3561 | 3847 | 4471 |
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