Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 255/45-18 | 265/45-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.04 (686.7) | 27.39 (695.7) | 0.35 (9) 1.3% |
| Width inches (mm) | 10.04 (255) | 10.43 (265) | 0.39 (10) 3.9% |
| Circum. inches (mm) | 84.93 (2157.33) | 86.05 (2185.61) | 1.11 (28.27) 1.3% |
| Sidewall Height inches (mm) | 4.52 (114.75) | 4.69 (119.25) | 0.18 (4.5) 3.9% |
| Revolutions per mile (km) | 745.99 (463.53) | 736.34 (457.54) | -9.65 (-6) -1.3% |
265/45-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.26 mph (32.61 km/h) |
| 25 mph (40.23 km/h) | 25.33 mph (40.76 km/h) |
| 30 mph (48.28 km/h) | 30.39 mph (48.91 km/h) |
| 35 mph (56.33 km/h) | 35.46 mph (57.07 km/h) |
| 40 mph (64.37 km/h) | 40.52 mph (65.22 km/h) |
| 45 mph (72.42 km/h) | 45.59 mph (73.37 km/h) |
| 50 mph (80.47 km/h) | 50.66 mph (81.52 km/h) |
| 55 mph (88.51 km/h) | 55.72 mph (89.67 km/h) |
| 60 mph (96.56 km/h) | 60.79 mph (97.83 km/h) |
| 65 mph (104.61 km/h) | 65.85 mph (105.98 km/h) |
| 70 mph (112.65 km/h) | 70.92 mph (114.13 km/h) |
| 75 mph (120.7 km/h) | 75.98 mph (122.28 km/h) |
| 80 mph (128.75 km/h) | 81.05 mph (130.44 km/h) |
| 85 mph (136.79 km/h) | 86.11 mph (138.59 km/h) |
| 90 mph (144.84 km/h) | 91.18 mph (146.74 km/h) |
| 95 mph (152.89 km/h) | 96.25 mph (154.89 km/h) |
| 100 mph (160.93 km/h) | 101.31 mph (163.04 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1874 | 2177 | 2344 | 2448 | 2560 | 2639 | 2727 | 2831 | 2974 | 3118 | 3277 | 3405 | 3636 | 3891 | 4091 | 4218 | 4290 | 4553 | 4920 | 5717 |
Better Fuel Economy Factory Ratios Increased Power
