Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 275/80-20 | 35/12.5-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 37.32 (948) | 35.02 (889.6) | -2.3 (-58.4) -6.2% |
| Width inches (mm) | 10.83 (275) | 12.52 (318) | 1.69 (43) 15.6% |
| Circum. inches (mm) | 117.25 (2978.23) | 110.03 (2794.76) | -7.22 (-183.47) -6.2% |
| Sidewall Height inches (mm) | 8.66 (220) | 7.51 (190.8) | -1.15 (-29.2) -13.3% |
| Revolutions per mile (km) | 540.37 (335.77) | 575.84 (357.81) | 35.47 (22.04) 6.6% |
35/12.5-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.77 mph (30.2 km/h) |
| 25 mph (40.23 km/h) | 23.46 mph (37.76 km/h) |
| 30 mph (48.28 km/h) | 28.15 mph (45.31 km/h) |
| 35 mph (56.33 km/h) | 32.84 mph (52.86 km/h) |
| 40 mph (64.37 km/h) | 37.54 mph (60.41 km/h) |
| 45 mph (72.42 km/h) | 42.23 mph (67.96 km/h) |
| 50 mph (80.47 km/h) | 46.92 mph (75.51 km/h) |
| 55 mph (88.51 km/h) | 51.61 mph (83.06 km/h) |
| 60 mph (96.56 km/h) | 56.3 mph (90.61 km/h) |
| 65 mph (104.61 km/h) | 61 mph (98.16 km/h) |
| 70 mph (112.65 km/h) | 65.69 mph (105.71 km/h) |
| 75 mph (120.7 km/h) | 70.38 mph (113.27 km/h) |
| 80 mph (128.75 km/h) | 75.07 mph (120.82 km/h) |
| 85 mph (136.79 km/h) | 79.76 mph (128.37 km/h) |
| 90 mph (144.84 km/h) | 84.46 mph (135.92 km/h) |
| 95 mph (152.89 km/h) | 89.15 mph (143.47 km/h) |
| 100 mph (160.93 km/h) | 93.84 mph (151.02 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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