Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 275/55-18 | 35/12.5-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.91 (759.7) | 35.02 (889.6) | 5.11 (129.9) 17.1% |
| Width inches (mm) | 10.83 (275) | 12.52 (318) | 1.69 (43) 15.6% |
| Circum. inches (mm) | 93.96 (2386.67) | 110.03 (2794.76) | 16.07 (408.09) 17.1% |
| Sidewall Height inches (mm) | 5.95 (151.25) | 7.51 (190.8) | 1.56 (39.55) 26.1% |
| Revolutions per mile (km) | 674.31 (418.99) | 575.84 (357.81) | -98.46 (-61.18) -14.6% |
35/12.5-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 23.42 mph (37.69 km/h) |
| 25 mph (40.23 km/h) | 29.27 mph (47.11 km/h) |
| 30 mph (48.28 km/h) | 35.13 mph (56.54 km/h) |
| 35 mph (56.33 km/h) | 40.98 mph (65.96 km/h) |
| 40 mph (64.37 km/h) | 46.84 mph (75.38 km/h) |
| 45 mph (72.42 km/h) | 52.69 mph (84.8 km/h) |
| 50 mph (80.47 km/h) | 58.55 mph (94.23 km/h) |
| 55 mph (88.51 km/h) | 64.4 mph (103.65 km/h) |
| 60 mph (96.56 km/h) | 70.26 mph (113.07 km/h) |
| 65 mph (104.61 km/h) | 76.11 mph (122.49 km/h) |
| 70 mph (112.65 km/h) | 81.97 mph (131.92 km/h) |
| 75 mph (120.7 km/h) | 87.82 mph (141.34 km/h) |
| 80 mph (128.75 km/h) | 93.68 mph (150.76 km/h) |
| 85 mph (136.79 km/h) | 99.53 mph (160.18 km/h) |
| 90 mph (144.84 km/h) | 105.39 mph (169.61 km/h) |
| 95 mph (152.89 km/h) | 111.24 mph (179.03 km/h) |
| 100 mph (160.93 km/h) | 117.1 mph (188.45 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1465 | 1702 | 1833 | 1914 | 2002 | 2064 | 2133 | 2214 | 2326 | 2438 | 2563 | 2663 | 2844 | 3043 | 3199 | 3299 | 3355 | 3561 | 3847 | 4471 |
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