Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 365/80-20 | 35/12.5-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 42.99 (1092) | 35.02 (889.6) | -7.97 (-202.4) -18.5% |
| Width inches (mm) | 14.37 (365) | 12.52 (318) | -1.85 (-47) -12.9% |
| Circum. inches (mm) | 135.06 (3430.62) | 110.03 (2794.76) | -25.03 (-635.86) -18.5% |
| Sidewall Height inches (mm) | 11.5 (292) | 7.51 (190.8) | -3.98 (-101.2) -34.7% |
| Revolutions per mile (km) | 469.11 (291.49) | 575.84 (357.81) | 106.73 (66.32) 22.8% |
35/12.5-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 16.29 mph (26.22 km/h) |
| 25 mph (40.23 km/h) | 20.37 mph (32.78 km/h) |
| 30 mph (48.28 km/h) | 24.44 mph (39.33 km/h) |
| 35 mph (56.33 km/h) | 28.51 mph (45.89 km/h) |
| 40 mph (64.37 km/h) | 32.59 mph (52.44 km/h) |
| 45 mph (72.42 km/h) | 36.66 mph (59 km/h) |
| 50 mph (80.47 km/h) | 40.73 mph (65.55 km/h) |
| 55 mph (88.51 km/h) | 44.81 mph (72.11 km/h) |
| 60 mph (96.56 km/h) | 48.88 mph (78.66 km/h) |
| 65 mph (104.61 km/h) | 52.95 mph (85.22 km/h) |
| 70 mph (112.65 km/h) | 57.03 mph (91.77 km/h) |
| 75 mph (120.7 km/h) | 61.1 mph (98.33 km/h) |
| 80 mph (128.75 km/h) | 65.17 mph (104.88 km/h) |
| 85 mph (136.79 km/h) | 69.25 mph (111.44 km/h) |
| 90 mph (144.84 km/h) | 73.32 mph (118 km/h) |
| 95 mph (152.89 km/h) | 77.39 mph (124.55 km/h) |
| 100 mph (160.93 km/h) | 81.47 mph (131.11 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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