Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 265/60-18 | 285/65-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.52 (775.2) | 32.59 (827.7) | 2.07 (52.5) 6.8% |
| Width inches (mm) | 10.43 (265) | 11.22 (285) | 0.79 (20) 7.5% |
| Circum. inches (mm) | 95.88 (2435.36) | 102.37 (2600.3) | 6.49 (164.93) 6.8% |
| Sidewall Height inches (mm) | 6.26 (159) | 7.29 (185.25) | 1.03 (26.25) 16.5% |
| Revolutions per mile (km) | 660.82 (410.62) | 618.91 (384.57) | -41.92 (-26.04) -6.3% |
285/65-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.35 mph (34.37 km/h) |
| 25 mph (40.23 km/h) | 26.69 mph (42.96 km/h) |
| 30 mph (48.28 km/h) | 32.03 mph (51.55 km/h) |
| 35 mph (56.33 km/h) | 37.37 mph (60.14 km/h) |
| 40 mph (64.37 km/h) | 42.71 mph (68.73 km/h) |
| 45 mph (72.42 km/h) | 48.05 mph (77.33 km/h) |
| 50 mph (80.47 km/h) | 53.39 mph (85.92 km/h) |
| 55 mph (88.51 km/h) | 58.72 mph (94.51 km/h) |
| 60 mph (96.56 km/h) | 64.06 mph (103.1 km/h) |
| 65 mph (104.61 km/h) | 69.4 mph (111.69 km/h) |
| 70 mph (112.65 km/h) | 74.74 mph (120.28 km/h) |
| 75 mph (120.7 km/h) | 80.08 mph (128.88 km/h) |
| 80 mph (128.75 km/h) | 85.42 mph (137.47 km/h) |
| 85 mph (136.79 km/h) | 90.76 mph (146.06 km/h) |
| 90 mph (144.84 km/h) | 96.1 mph (154.65 km/h) |
| 95 mph (152.89 km/h) | 101.43 mph (163.24 km/h) |
| 100 mph (160.93 km/h) | 106.77 mph (171.83 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1575 | 1830 | 1970 | 2058 | 2151 | 2218 | 2292 | 2379 | 2500 | 2621 | 2755 | 2862 | 3056 | 3271 | 3438 | 3545 | 3606 | 3827 | 4135 | 4805 |
Better Fuel Economy Factory Ratios Increased Power
