Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 150/60-18 | 150/80-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.09 (637.2) | 27.45 (697.2) | 2.36 (60) 9.4% |
| Width inches (mm) | 5.91 (150) | 5.91 (150) | 0 (0) 0% |
| Circum. inches (mm) | 78.81 (2001.82) | 86.23 (2190.32) | 7.42 (188.5) 9.4% |
| Sidewall Height inches (mm) | 3.54 (90) | 4.72 (120) | 1.18 (30) 33.3% |
| Revolutions per mile (km) | 803.94 (499.54) | 734.75 (456.55) | -69.19 (-42.99) -8.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.88 mph (35.22 km/h) |
| 25 mph (40.23 km/h) | 27.35 mph (44.02 km/h) |
| 30 mph (48.28 km/h) | 32.82 mph (52.83 km/h) |
| 35 mph (56.33 km/h) | 38.3 mph (61.63 km/h) |
| 40 mph (64.37 km/h) | 43.77 mph (70.44 km/h) |
| 45 mph (72.42 km/h) | 49.24 mph (79.24 km/h) |
| 50 mph (80.47 km/h) | 54.71 mph (88.04 km/h) |
| 55 mph (88.51 km/h) | 60.18 mph (96.85 km/h) |
| 60 mph (96.56 km/h) | 65.65 mph (105.65 km/h) |
| 65 mph (104.61 km/h) | 71.12 mph (114.46 km/h) |
| 70 mph (112.65 km/h) | 76.59 mph (123.26 km/h) |
| 75 mph (120.7 km/h) | 82.06 mph (132.07 km/h) |
| 80 mph (128.75 km/h) | 87.53 mph (140.87 km/h) |
| 85 mph (136.79 km/h) | 93 mph (149.68 km/h) |
| 90 mph (144.84 km/h) | 98.47 mph (158.48 km/h) |
| 95 mph (152.89 km/h) | 103.95 mph (167.28 km/h) |
| 100 mph (160.93 km/h) | 109.42 mph (176.09 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1870 | 2172 | 2339 | 2443 | 2554 | 2634 | 2721 | 2825 | 2968 | 3111 | 3270 | 3397 | 3628 | 3883 | 4082 | 4209 | 4281 | 4543 | 4909 | 5705 |
Better Fuel Economy Factory Ratios Increased Power
