Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 245/60-18 | 245/70-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.57 (751.2) | 31.5 (800.2) | 1.93 (49) 6.5% |
| Width inches (mm) | 9.65 (245) | 9.65 (245) | 0 (0) 0% |
| Circum. inches (mm) | 92.91 (2359.96) | 98.97 (2513.9) | 6.06 (153.94) 6.5% |
| Sidewall Height inches (mm) | 5.79 (147) | 6.75 (171.5) | 0.96 (24.5) 16.7% |
| Revolutions per mile (km) | 681.94 (423.73) | 640.18 (397.79) | -41.76 (-25.95) -6.1% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.3 mph (34.29 km/h) |
| 25 mph (40.23 km/h) | 26.63 mph (42.86 km/h) |
| 30 mph (48.28 km/h) | 31.96 mph (51.43 km/h) |
| 35 mph (56.33 km/h) | 37.28 mph (60 km/h) |
| 40 mph (64.37 km/h) | 42.61 mph (68.57 km/h) |
| 45 mph (72.42 km/h) | 47.94 mph (77.14 km/h) |
| 50 mph (80.47 km/h) | 53.26 mph (85.72 km/h) |
| 55 mph (88.51 km/h) | 58.59 mph (94.29 km/h) |
| 60 mph (96.56 km/h) | 63.91 mph (102.86 km/h) |
| 65 mph (104.61 km/h) | 69.24 mph (111.43 km/h) |
| 70 mph (112.65 km/h) | 74.57 mph (120 km/h) |
| 75 mph (120.7 km/h) | 79.89 mph (128.57 km/h) |
| 80 mph (128.75 km/h) | 85.22 mph (137.15 km/h) |
| 85 mph (136.79 km/h) | 90.54 mph (145.72 km/h) |
| 90 mph (144.84 km/h) | 95.87 mph (154.29 km/h) |
| 95 mph (152.89 km/h) | 101.2 mph (162.86 km/h) |
| 100 mph (160.93 km/h) | 106.52 mph (171.43 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1629 | 1893 | 2038 | 2128 | 2225 | 2295 | 2371 | 2461 | 2586 | 2711 | 2849 | 2960 | 3161 | 3383 | 3556 | 3667 | 3730 | 3958 | 4277 | 4971 |
Better Fuel Economy Factory Ratios Increased Power
