Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 180/70-18 | 265/70-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.92 (709.2) | 32.61 (828.2) | 4.69 (119) 16.8% |
| Width inches (mm) | 7.09 (180) | 10.43 (265) | 3.35 (85) 47.2% |
| Circum. inches (mm) | 87.72 (2228.02) | 102.44 (2601.87) | 14.72 (373.85) 16.8% |
| Sidewall Height inches (mm) | 4.96 (126) | 7.3 (185.5) | 2.34 (59.5) 47.2% |
| Revolutions per mile (km) | 722.32 (448.83) | 618.53 (384.34) | -103.79 (-64.49) -14.4% |
265/70-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 23.36 mph (37.59 km/h) |
| 25 mph (40.23 km/h) | 29.19 mph (46.98 km/h) |
| 30 mph (48.28 km/h) | 35.03 mph (56.38 km/h) |
| 35 mph (56.33 km/h) | 40.87 mph (65.78 km/h) |
| 40 mph (64.37 km/h) | 46.71 mph (75.18 km/h) |
| 45 mph (72.42 km/h) | 52.55 mph (84.57 km/h) |
| 50 mph (80.47 km/h) | 58.39 mph (93.97 km/h) |
| 55 mph (88.51 km/h) | 64.23 mph (103.37 km/h) |
| 60 mph (96.56 km/h) | 70.07 mph (112.76 km/h) |
| 65 mph (104.61 km/h) | 75.91 mph (122.16 km/h) |
| 70 mph (112.65 km/h) | 81.75 mph (131.56 km/h) |
| 75 mph (120.7 km/h) | 87.58 mph (140.95 km/h) |
| 80 mph (128.75 km/h) | 93.42 mph (150.35 km/h) |
| 85 mph (136.79 km/h) | 99.26 mph (159.75 km/h) |
| 90 mph (144.84 km/h) | 105.1 mph (169.14 km/h) |
| 95 mph (152.89 km/h) | 110.94 mph (178.54 km/h) |
| 100 mph (160.93 km/h) | 116.78 mph (187.94 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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