Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 245/70-17 | 265/70-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.5 (774.8) | 32.61 (828.2) | 2.1 (53.4) 6.9% |
| Width inches (mm) | 9.65 (245) | 10.43 (265) | 0.79 (20) 8.2% |
| Circum. inches (mm) | 95.83 (2434.11) | 102.44 (2601.87) | 6.6 (167.76) 6.9% |
| Sidewall Height inches (mm) | 6.75 (171.5) | 7.3 (185.5) | 0.55 (14) 8.2% |
| Revolutions per mile (km) | 661.16 (410.83) | 618.53 (384.34) | -42.63 (-26.49) -6.4% |
265/70-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.38 mph (34.41 km/h) |
| 25 mph (40.23 km/h) | 26.72 mph (43.01 km/h) |
| 30 mph (48.28 km/h) | 32.07 mph (51.61 km/h) |
| 35 mph (56.33 km/h) | 37.41 mph (60.21 km/h) |
| 40 mph (64.37 km/h) | 42.76 mph (68.81 km/h) |
| 45 mph (72.42 km/h) | 48.1 mph (77.41 km/h) |
| 50 mph (80.47 km/h) | 53.45 mph (86.01 km/h) |
| 55 mph (88.51 km/h) | 58.79 mph (94.61 km/h) |
| 60 mph (96.56 km/h) | 64.14 mph (103.22 km/h) |
| 65 mph (104.61 km/h) | 69.48 mph (111.82 km/h) |
| 70 mph (112.65 km/h) | 74.82 mph (120.42 km/h) |
| 75 mph (120.7 km/h) | 80.17 mph (129.02 km/h) |
| 80 mph (128.75 km/h) | 85.51 mph (137.62 km/h) |
| 85 mph (136.79 km/h) | 90.86 mph (146.22 km/h) |
| 90 mph (144.84 km/h) | 96.2 mph (154.82 km/h) |
| 95 mph (152.89 km/h) | 101.55 mph (163.43 km/h) |
| 100 mph (160.93 km/h) | 106.89 mph (172.03 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 |
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