Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 35/12.5-18 | 275/70-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 35.03 (889.68) | 33.16 (842.2) | -1.87 (-47.48) -5.3% |
| Width inches (mm) | 12.52 (318) | 10.83 (275) | -1.69 (-43) -13.5% |
| Circum. inches (mm) | 110.04 (2795.01) | 104.17 (2645.85) | -5.87 (-149.16) -5.3% |
| Sidewall Height inches (mm) | 8.51 (216.24) | 7.58 (192.5) | -0.93 (-23.74) -11% |
| Revolutions per mile (km) | 575.79 (357.78) | 608.25 (377.95) | 32.46 (20.17) 5.6% |
275/70-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.93 mph (30.47 km/h) |
| 25 mph (40.23 km/h) | 23.67 mph (38.09 km/h) |
| 30 mph (48.28 km/h) | 28.4 mph (45.7 km/h) |
| 35 mph (56.33 km/h) | 33.13 mph (53.32 km/h) |
| 40 mph (64.37 km/h) | 37.87 mph (60.94 km/h) |
| 45 mph (72.42 km/h) | 42.6 mph (68.56 km/h) |
| 50 mph (80.47 km/h) | 47.33 mph (76.17 km/h) |
| 55 mph (88.51 km/h) | 52.06 mph (83.79 km/h) |
| 60 mph (96.56 km/h) | 56.8 mph (91.41 km/h) |
| 65 mph (104.61 km/h) | 61.53 mph (99.02 km/h) |
| 70 mph (112.65 km/h) | 66.26 mph (106.64 km/h) |
| 75 mph (120.7 km/h) | 71 mph (114.26 km/h) |
| 80 mph (128.75 km/h) | 75.73 mph (121.88 km/h) |
| 85 mph (136.79 km/h) | 80.46 mph (129.49 km/h) |
| 90 mph (144.84 km/h) | 85.2 mph (137.11 km/h) |
| 95 mph (152.89 km/h) | 89.93 mph (144.73 km/h) |
| 100 mph (160.93 km/h) | 94.66 mph (152.35 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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