Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 33/12.5-20 | 285/60-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 33.02 (838.72) | 33.46 (850) | 0.44 (11.28) 1.3% |
| Width inches (mm) | 12.52 (318) | 11.22 (285) | -1.3 (-33) -10.4% |
| Circum. inches (mm) | 103.74 (2634.92) | 105.13 (2670.35) | 1.4 (35.44) 1.3% |
| Sidewall Height inches (mm) | 6.51 (165.36) | 6.73 (171) | 0.22 (5.64) 3.4% |
| Revolutions per mile (km) | 610.78 (379.52) | 602.67 (374.48) | -8.11 (-5.04) -1.3% |
285/60-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.27 mph (32.62 km/h) |
| 25 mph (40.23 km/h) | 25.34 mph (40.77 km/h) |
| 30 mph (48.28 km/h) | 30.4 mph (48.93 km/h) |
| 35 mph (56.33 km/h) | 35.47 mph (57.08 km/h) |
| 40 mph (64.37 km/h) | 40.54 mph (65.24 km/h) |
| 45 mph (72.42 km/h) | 45.61 mph (73.39 km/h) |
| 50 mph (80.47 km/h) | 50.67 mph (81.55 km/h) |
| 55 mph (88.51 km/h) | 55.74 mph (89.7 km/h) |
| 60 mph (96.56 km/h) | 60.81 mph (97.86 km/h) |
| 65 mph (104.61 km/h) | 65.87 mph (106.01 km/h) |
| 70 mph (112.65 km/h) | 70.94 mph (114.17 km/h) |
| 75 mph (120.7 km/h) | 76.01 mph (122.32 km/h) |
| 80 mph (128.75 km/h) | 81.08 mph (130.48 km/h) |
| 85 mph (136.79 km/h) | 86.14 mph (138.63 km/h) |
| 90 mph (144.84 km/h) | 91.21 mph (146.79 km/h) |
| 95 mph (152.89 km/h) | 96.28 mph (154.94 km/h) |
| 100 mph (160.93 km/h) | 101.34 mph (163.1 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1534 | 1782 | 1919 | 2004 | 2095 | 2160 | 2232 | 2317 | 2434 | 2552 | 2682 | 2787 | 2976 | 3185 | 3348 | 3452 | 3511 | 3727 | 4027 | 4679 |
Better Fuel Economy Factory Ratios Increased Power
