Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 335/25-20 | 345/30-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.59 (675.5) | 28.15 (715) | 1.56 (39.5) 5.8% |
| Width inches (mm) | 13.19 (335) | 13.58 (345) | 0.39 (10) 3% |
| Circum. inches (mm) | 83.55 (2122.15) | 88.43 (2246.24) | 4.89 (124.09) 5.8% |
| Sidewall Height inches (mm) | 3.3 (83.75) | 4.07 (103.5) | 0.78 (19.75) 23.6% |
| Revolutions per mile (km) | 758.36 (471.22) | 716.46 (445.19) | -41.9 (-26.03) -5.5% |
345/30-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.17 mph (34.07 km/h) |
| 25 mph (40.23 km/h) | 26.46 mph (42.59 km/h) |
| 30 mph (48.28 km/h) | 31.75 mph (51.1 km/h) |
| 35 mph (56.33 km/h) | 37.05 mph (59.62 km/h) |
| 40 mph (64.37 km/h) | 42.34 mph (68.14 km/h) |
| 45 mph (72.42 km/h) | 47.63 mph (76.66 km/h) |
| 50 mph (80.47 km/h) | 52.92 mph (85.17 km/h) |
| 55 mph (88.51 km/h) | 58.22 mph (93.69 km/h) |
| 60 mph (96.56 km/h) | 63.51 mph (102.21 km/h) |
| 65 mph (104.61 km/h) | 68.8 mph (110.72 km/h) |
| 70 mph (112.65 km/h) | 74.09 mph (119.24 km/h) |
| 75 mph (120.7 km/h) | 79.39 mph (127.76 km/h) |
| 80 mph (128.75 km/h) | 84.68 mph (136.28 km/h) |
| 85 mph (136.79 km/h) | 89.97 mph (144.79 km/h) |
| 90 mph (144.84 km/h) | 95.26 mph (153.31 km/h) |
| 95 mph (152.89 km/h) | 100.56 mph (161.83 km/h) |
| 100 mph (160.93 km/h) | 105.85 mph (170.35 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1823 | 2118 | 2281 | 2382 | 2490 | 2568 | 2653 | 2754 | 2894 | 3034 | 3189 | 3313 | 3538 | 3786 | 3980 | 4104 | 4174 | 4430 | 4787 | 5563 |
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