Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 145/80-18 | 235/45-19 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.13 (689.2) | 27.33 (694.1) | 0.19 (4.9) 0.7% |
| Width inches (mm) | 5.71 (145) | 9.25 (235) | 3.54 (90) 62.1% |
| Circum. inches (mm) | 85.24 (2165.19) | 85.85 (2180.58) | 0.61 (15.39) 0.7% |
| Sidewall Height inches (mm) | 4.57 (116) | 4.16 (105.75) | -0.4 (-10.25) -8.8% |
| Revolutions per mile (km) | 743.28 (461.85) | 738.04 (458.59) | -5.25 (-3.26) -0.7% |
235/45-19 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.14 mph (32.42 km/h) |
| 25 mph (40.23 km/h) | 25.18 mph (40.52 km/h) |
| 30 mph (48.28 km/h) | 30.21 mph (48.62 km/h) |
| 35 mph (56.33 km/h) | 35.25 mph (56.73 km/h) |
| 40 mph (64.37 km/h) | 40.28 mph (64.83 km/h) |
| 45 mph (72.42 km/h) | 45.32 mph (72.94 km/h) |
| 50 mph (80.47 km/h) | 50.36 mph (81.04 km/h) |
| 55 mph (88.51 km/h) | 55.39 mph (89.14 km/h) |
| 60 mph (96.56 km/h) | 60.43 mph (97.25 km/h) |
| 65 mph (104.61 km/h) | 65.46 mph (105.35 km/h) |
| 70 mph (112.65 km/h) | 70.5 mph (113.46 km/h) |
| 75 mph (120.7 km/h) | 75.53 mph (121.56 km/h) |
| 80 mph (128.75 km/h) | 80.57 mph (129.66 km/h) |
| 85 mph (136.79 km/h) | 85.6 mph (137.77 km/h) |
| 90 mph (144.84 km/h) | 90.64 mph (145.87 km/h) |
| 95 mph (152.89 km/h) | 95.68 mph (153.97 km/h) |
| 100 mph (160.93 km/h) | 100.71 mph (162.08 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1878 | 2182 | 2350 | 2454 | 2565 | 2645 | 2733 | 2837 | 2981 | 3125 | 3285 | 3413 | 3644 | 3900 | 4100 | 4228 | 4300 | 4564 | 4931 | 5730 |
Better Fuel Economy Factory Ratios Increased Power
