Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 255/65-18 | 265/70-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 31.05 (788.7) | 32.61 (828.2) | 1.56 (39.5) 5% |
| Width inches (mm) | 10.04 (255) | 10.43 (265) | 0.39 (10) 3.9% |
| Circum. inches (mm) | 97.55 (2477.77) | 102.44 (2601.87) | 4.89 (124.09) 5% |
| Sidewall Height inches (mm) | 6.53 (165.75) | 7.3 (185.5) | 0.78 (19.75) 11.9% |
| Revolutions per mile (km) | 649.51 (403.59) | 618.53 (384.34) | -30.98 (-19.25) -4.8% |
265/70-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21 mph (33.8 km/h) |
| 25 mph (40.23 km/h) | 26.25 mph (42.25 km/h) |
| 30 mph (48.28 km/h) | 31.5 mph (50.7 km/h) |
| 35 mph (56.33 km/h) | 36.75 mph (59.15 km/h) |
| 40 mph (64.37 km/h) | 42 mph (67.6 km/h) |
| 45 mph (72.42 km/h) | 47.25 mph (76.05 km/h) |
| 50 mph (80.47 km/h) | 52.5 mph (84.5 km/h) |
| 55 mph (88.51 km/h) | 57.75 mph (92.95 km/h) |
| 60 mph (96.56 km/h) | 63 mph (101.4 km/h) |
| 65 mph (104.61 km/h) | 68.26 mph (109.85 km/h) |
| 70 mph (112.65 km/h) | 73.51 mph (118.3 km/h) |
| 75 mph (120.7 km/h) | 78.76 mph (126.75 km/h) |
| 80 mph (128.75 km/h) | 84.01 mph (135.2 km/h) |
| 85 mph (136.79 km/h) | 89.26 mph (143.65 km/h) |
| 90 mph (144.84 km/h) | 94.51 mph (152.1 km/h) |
| 95 mph (152.89 km/h) | 99.76 mph (160.54 km/h) |
| 100 mph (160.93 km/h) | 105.01 mph (168.99 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1574 | 1829 | 1969 | 2056 | 2150 | 2217 | 2291 | 2378 | 2498 | 2619 | 2753 | 2860 | 3054 | 3269 | 3436 | 3543 | 3604 | 3825 | 4133 | 4803 |
Better Fuel Economy Factory Ratios Increased Power
