Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 155/60-18 | 195/60-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.32 (643.2) | 27.21 (691.2) | 1.89 (48) 7.5% |
| Width inches (mm) | 6.1 (155) | 7.68 (195) | 1.57 (40) 25.8% |
| Circum. inches (mm) | 79.55 (2020.67) | 85.49 (2171.47) | 5.94 (150.8) 7.5% |
| Sidewall Height inches (mm) | 3.66 (93) | 4.61 (117) | 0.94 (24) 25.8% |
| Revolutions per mile (km) | 796.44 (494.88) | 741.13 (460.52) | -55.31 (-34.37) -6.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.49 mph (34.59 km/h) |
| 25 mph (40.23 km/h) | 26.87 mph (43.24 km/h) |
| 30 mph (48.28 km/h) | 32.24 mph (51.88 km/h) |
| 35 mph (56.33 km/h) | 37.61 mph (60.53 km/h) |
| 40 mph (64.37 km/h) | 42.99 mph (69.18 km/h) |
| 45 mph (72.42 km/h) | 48.36 mph (77.83 km/h) |
| 50 mph (80.47 km/h) | 53.73 mph (86.47 km/h) |
| 55 mph (88.51 km/h) | 59.1 mph (95.12 km/h) |
| 60 mph (96.56 km/h) | 64.48 mph (103.77 km/h) |
| 65 mph (104.61 km/h) | 69.85 mph (112.41 km/h) |
| 70 mph (112.65 km/h) | 75.22 mph (121.06 km/h) |
| 75 mph (120.7 km/h) | 80.6 mph (129.71 km/h) |
| 80 mph (128.75 km/h) | 85.97 mph (138.36 km/h) |
| 85 mph (136.79 km/h) | 91.34 mph (147 km/h) |
| 90 mph (144.84 km/h) | 96.72 mph (155.65 km/h) |
| 95 mph (152.89 km/h) | 102.09 mph (164.3 km/h) |
| 100 mph (160.93 km/h) | 107.46 mph (172.94 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1886 | 2191 | 2360 | 2464 | 2576 | 2657 | 2745 | 2849 | 2994 | 3138 | 3299 | 3427 | 3660 | 3917 | 4117 | 4246 | 4318 | 4583 | 4952 | 5754 |
Better Fuel Economy Factory Ratios Increased Power
