Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 285/60-18 | 245/60-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 31.46 (799.2) | 29.57 (751.2) | -1.89 (-48) -6% |
| Width inches (mm) | 11.22 (285) | 9.65 (245) | -1.57 (-40) -14% |
| Circum. inches (mm) | 98.85 (2510.76) | 92.91 (2359.96) | -5.94 (-150.8) -6% |
| Sidewall Height inches (mm) | 6.73 (171) | 5.79 (147) | -0.94 (-24) -14% |
| Revolutions per mile (km) | 640.98 (398.28) | 681.94 (423.73) | 40.96 (25.45) 6.4% |
245/60-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.8 mph (30.25 km/h) |
| 25 mph (40.23 km/h) | 23.5 mph (37.82 km/h) |
| 30 mph (48.28 km/h) | 28.2 mph (45.38 km/h) |
| 35 mph (56.33 km/h) | 32.9 mph (52.94 km/h) |
| 40 mph (64.37 km/h) | 37.6 mph (60.51 km/h) |
| 45 mph (72.42 km/h) | 42.3 mph (68.07 km/h) |
| 50 mph (80.47 km/h) | 47 mph (75.63 km/h) |
| 55 mph (88.51 km/h) | 51.7 mph (83.2 km/h) |
| 60 mph (96.56 km/h) | 56.4 mph (90.76 km/h) |
| 65 mph (104.61 km/h) | 61.1 mph (98.32 km/h) |
| 70 mph (112.65 km/h) | 65.8 mph (105.89 km/h) |
| 75 mph (120.7 km/h) | 70.5 mph (113.45 km/h) |
| 80 mph (128.75 km/h) | 75.2 mph (121.02 km/h) |
| 85 mph (136.79 km/h) | 79.89 mph (128.58 km/h) |
| 90 mph (144.84 km/h) | 84.59 mph (136.14 km/h) |
| 95 mph (152.89 km/h) | 89.29 mph (143.71 km/h) |
| 100 mph (160.93 km/h) | 93.99 mph (151.27 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1735 | 2016 | 2171 | 2267 | 2370 | 2444 | 2526 | 2622 | 2754 | 2887 | 3035 | 3153 | 3367 | 3604 | 3788 | 3906 | 3973 | 4217 | 4556 | 5295 |
Better Fuel Economy Factory Ratios Increased Power
