Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 235/55-19 | 265/65-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.18 (741.1) | 31.56 (801.7) | 2.39 (60.6) 8.2% |
| Width inches (mm) | 9.25 (235) | 10.43 (265) | 1.18 (30) 12.8% |
| Circum. inches (mm) | 91.66 (2328.23) | 99.16 (2518.61) | 7.5 (190.38) 8.2% |
| Sidewall Height inches (mm) | 5.09 (129.25) | 6.78 (172.25) | 1.69 (43) 33.3% |
| Revolutions per mile (km) | 691.23 (429.51) | 638.98 (397.04) | -52.25 (-32.47) -7.6% |
265/65-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.64 mph (34.82 km/h) |
| 25 mph (40.23 km/h) | 27.04 mph (43.52 km/h) |
| 30 mph (48.28 km/h) | 32.45 mph (52.23 km/h) |
| 35 mph (56.33 km/h) | 37.86 mph (60.93 km/h) |
| 40 mph (64.37 km/h) | 43.27 mph (69.64 km/h) |
| 45 mph (72.42 km/h) | 48.68 mph (78.34 km/h) |
| 50 mph (80.47 km/h) | 54.09 mph (87.05 km/h) |
| 55 mph (88.51 km/h) | 59.5 mph (95.75 km/h) |
| 60 mph (96.56 km/h) | 64.91 mph (104.46 km/h) |
| 65 mph (104.61 km/h) | 70.32 mph (113.16 km/h) |
| 70 mph (112.65 km/h) | 75.72 mph (121.87 km/h) |
| 75 mph (120.7 km/h) | 81.13 mph (130.57 km/h) |
| 80 mph (128.75 km/h) | 86.54 mph (139.28 km/h) |
| 85 mph (136.79 km/h) | 91.95 mph (147.98 km/h) |
| 90 mph (144.84 km/h) | 97.36 mph (156.68 km/h) |
| 95 mph (152.89 km/h) | 102.77 mph (165.39 km/h) |
| 100 mph (160.93 km/h) | 108.18 mph (174.09 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1626 | 1889 | 2034 | 2124 | 2221 | 2290 | 2366 | 2456 | 2581 | 2706 | 2844 | 2955 | 3155 | 3377 | 3550 | 3660 | 3723 | 3951 | 4269 | 4961 |
Better Fuel Economy Factory Ratios Increased Power
