Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 265/65-18 | 275/65-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 31.56 (801.7) | 32.07 (814.7) | 0.51 (13) 1.6% |
| Width inches (mm) | 10.43 (265) | 10.83 (275) | 0.39 (10) 3.8% |
| Circum. inches (mm) | 99.16 (2518.61) | 100.77 (2559.46) | 1.61 (40.84) 1.6% |
| Sidewall Height inches (mm) | 6.78 (172.25) | 7.04 (178.75) | 0.26 (6.5) 3.8% |
| Revolutions per mile (km) | 638.98 (397.04) | 628.78 (390.71) | -10.2 (-6.34) -1.6% |
275/65-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.32 mph (32.71 km/h) |
| 25 mph (40.23 km/h) | 25.41 mph (40.89 km/h) |
| 30 mph (48.28 km/h) | 30.49 mph (49.06 km/h) |
| 35 mph (56.33 km/h) | 35.57 mph (57.24 km/h) |
| 40 mph (64.37 km/h) | 40.65 mph (65.42 km/h) |
| 45 mph (72.42 km/h) | 45.73 mph (73.59 km/h) |
| 50 mph (80.47 km/h) | 50.81 mph (81.77 km/h) |
| 55 mph (88.51 km/h) | 55.89 mph (89.95 km/h) |
| 60 mph (96.56 km/h) | 60.97 mph (98.13 km/h) |
| 65 mph (104.61 km/h) | 66.05 mph (106.3 km/h) |
| 70 mph (112.65 km/h) | 71.14 mph (114.48 km/h) |
| 75 mph (120.7 km/h) | 76.22 mph (122.66 km/h) |
| 80 mph (128.75 km/h) | 81.3 mph (130.84 km/h) |
| 85 mph (136.79 km/h) | 86.38 mph (139.01 km/h) |
| 90 mph (144.84 km/h) | 91.46 mph (147.19 km/h) |
| 95 mph (152.89 km/h) | 96.54 mph (155.37 km/h) |
| 100 mph (160.93 km/h) | 101.62 mph (163.54 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1600 | 1859 | 2002 | 2090 | 2186 | 2254 | 2329 | 2417 | 2540 | 2662 | 2799 | 2907 | 3105 | 3323 | 3493 | 3602 | 3663 | 3888 | 4201 | 4882 |
Better Fuel Economy Factory Ratios Increased Power
