Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 265/60-18 | 285/55-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.52 (775.2) | 30.34 (770.7) | -0.18 (-4.5) -0.6% |
| Width inches (mm) | 10.43 (265) | 11.22 (285) | 0.79 (20) 7.5% |
| Circum. inches (mm) | 95.88 (2435.36) | 95.32 (2421.23) | -0.56 (-14.14) -0.6% |
| Sidewall Height inches (mm) | 6.26 (159) | 6.17 (156.75) | -0.09 (-2.25) -1.4% |
| Revolutions per mile (km) | 660.82 (410.62) | 664.68 (413.01) | 3.86 (2.4) 0.6% |
285/55-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.88 mph (32 km/h) |
| 25 mph (40.23 km/h) | 24.85 mph (40 km/h) |
| 30 mph (48.28 km/h) | 29.83 mph (48 km/h) |
| 35 mph (56.33 km/h) | 34.8 mph (56 km/h) |
| 40 mph (64.37 km/h) | 39.77 mph (64 km/h) |
| 45 mph (72.42 km/h) | 44.74 mph (72 km/h) |
| 50 mph (80.47 km/h) | 49.71 mph (80 km/h) |
| 55 mph (88.51 km/h) | 54.68 mph (88 km/h) |
| 60 mph (96.56 km/h) | 59.65 mph (96 km/h) |
| 65 mph (104.61 km/h) | 64.62 mph (104 km/h) |
| 70 mph (112.65 km/h) | 69.59 mph (112 km/h) |
| 75 mph (120.7 km/h) | 74.56 mph (120 km/h) |
| 80 mph (128.75 km/h) | 79.54 mph (128 km/h) |
| 85 mph (136.79 km/h) | 84.51 mph (136 km/h) |
| 90 mph (144.84 km/h) | 89.48 mph (144 km/h) |
| 95 mph (152.89 km/h) | 94.45 mph (152 km/h) |
| 100 mph (160.93 km/h) | 99.42 mph (160 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1691 | 1965 | 2116 | 2210 | 2311 | 2382 | 2462 | 2555 | 2685 | 2814 | 2958 | 3073 | 3282 | 3513 | 3692 | 3808 | 3872 | 4110 | 4441 | 5161 |
Better Fuel Economy Factory Ratios Increased Power
