Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 270/75-18 | 265/65-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 33.94 (862.2) | 31.56 (801.7) | -2.38 (-60.5) -7% |
| Width inches (mm) | 10.63 (270) | 10.43 (265) | -0.2 (-5) -1.9% |
| Circum. inches (mm) | 106.64 (2708.68) | 99.16 (2518.61) | -7.48 (-190.07) -7% |
| Sidewall Height inches (mm) | 7.97 (202.5) | 6.78 (172.25) | -1.19 (-30.25) -14.9% |
| Revolutions per mile (km) | 594.14 (369.18) | 638.98 (397.04) | 44.84 (27.86) 7.5% |
265/65-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.6 mph (29.93 km/h) |
| 25 mph (40.23 km/h) | 23.25 mph (37.41 km/h) |
| 30 mph (48.28 km/h) | 27.89 mph (44.89 km/h) |
| 35 mph (56.33 km/h) | 32.54 mph (52.37 km/h) |
| 40 mph (64.37 km/h) | 37.19 mph (59.86 km/h) |
| 45 mph (72.42 km/h) | 41.84 mph (67.34 km/h) |
| 50 mph (80.47 km/h) | 46.49 mph (74.82 km/h) |
| 55 mph (88.51 km/h) | 51.14 mph (82.3 km/h) |
| 60 mph (96.56 km/h) | 55.79 mph (89.79 km/h) |
| 65 mph (104.61 km/h) | 60.44 mph (97.27 km/h) |
| 70 mph (112.65 km/h) | 65.09 mph (104.75 km/h) |
| 75 mph (120.7 km/h) | 69.74 mph (112.23 km/h) |
| 80 mph (128.75 km/h) | 74.39 mph (119.71 km/h) |
| 85 mph (136.79 km/h) | 79.04 mph (127.2 km/h) |
| 90 mph (144.84 km/h) | 83.68 mph (134.68 km/h) |
| 95 mph (152.89 km/h) | 88.33 mph (142.16 km/h) |
| 100 mph (160.93 km/h) | 92.98 mph (149.64 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1626 | 1889 | 2034 | 2124 | 2221 | 2290 | 2366 | 2456 | 2581 | 2706 | 2844 | 2955 | 3155 | 3377 | 3550 | 3660 | 3723 | 3951 | 4269 | 4961 |
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