Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 285/45-22 | 275/70-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 32.1 (815.3) | 33.16 (842.2) | 1.06 (26.9) 3.3% |
| Width inches (mm) | 11.22 (285) | 10.83 (275) | -0.39 (-10) -3.5% |
| Circum. inches (mm) | 100.84 (2561.34) | 104.17 (2645.85) | 3.33 (84.51) 3.3% |
| Sidewall Height inches (mm) | 5.05 (128.25) | 7.58 (192.5) | 2.53 (64.25) 50.1% |
| Revolutions per mile (km) | 628.32 (390.42) | 608.25 (377.95) | -20.07 (-12.47) -3.2% |
275/70-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.66 mph (33.25 km/h) |
| 25 mph (40.23 km/h) | 25.82 mph (41.56 km/h) |
| 30 mph (48.28 km/h) | 30.99 mph (49.87 km/h) |
| 35 mph (56.33 km/h) | 36.15 mph (58.19 km/h) |
| 40 mph (64.37 km/h) | 41.32 mph (66.5 km/h) |
| 45 mph (72.42 km/h) | 46.48 mph (74.81 km/h) |
| 50 mph (80.47 km/h) | 51.65 mph (83.12 km/h) |
| 55 mph (88.51 km/h) | 56.81 mph (91.43 km/h) |
| 60 mph (96.56 km/h) | 61.98 mph (99.75 km/h) |
| 65 mph (104.61 km/h) | 67.14 mph (108.06 km/h) |
| 70 mph (112.65 km/h) | 72.31 mph (116.37 km/h) |
| 75 mph (120.7 km/h) | 77.47 mph (124.68 km/h) |
| 80 mph (128.75 km/h) | 82.64 mph (133 km/h) |
| 85 mph (136.79 km/h) | 87.8 mph (141.31 km/h) |
| 90 mph (144.84 km/h) | 92.97 mph (149.62 km/h) |
| 95 mph (152.89 km/h) | 98.13 mph (157.93 km/h) |
| 100 mph (160.93 km/h) | 103.3 mph (166.24 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1548 | 1798 | 1937 | 2022 | 2114 | 2180 | 2253 | 2338 | 2457 | 2575 | 2707 | 2813 | 3004 | 3214 | 3379 | 3484 | 3544 | 3761 | 4064 | 4723 |
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