Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 335/30-20 | 345/25-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.91 (709) | 26.79 (680.5) | -1.12 (-28.5) -4% |
| Width inches (mm) | 13.19 (335) | 13.58 (345) | 0.39 (10) 3% |
| Circum. inches (mm) | 87.69 (2227.39) | 84.17 (2137.85) | -3.53 (-89.54) -4% |
| Sidewall Height inches (mm) | 3.96 (100.5) | 3.4 (86.25) | -0.56 (-14.25) -14.2% |
| Revolutions per mile (km) | 722.52 (448.96) | 752.78 (467.76) | 30.26 (18.8) 4.2% |
345/25-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.2 mph (30.89 km/h) |
| 25 mph (40.23 km/h) | 24 mph (38.62 km/h) |
| 30 mph (48.28 km/h) | 28.79 mph (46.34 km/h) |
| 35 mph (56.33 km/h) | 33.59 mph (54.06 km/h) |
| 40 mph (64.37 km/h) | 38.39 mph (61.79 km/h) |
| 45 mph (72.42 km/h) | 43.19 mph (69.51 km/h) |
| 50 mph (80.47 km/h) | 47.99 mph (77.23 km/h) |
| 55 mph (88.51 km/h) | 52.79 mph (84.96 km/h) |
| 60 mph (96.56 km/h) | 57.59 mph (92.68 km/h) |
| 65 mph (104.61 km/h) | 62.39 mph (100.4 km/h) |
| 70 mph (112.65 km/h) | 67.19 mph (108.13 km/h) |
| 75 mph (120.7 km/h) | 71.99 mph (115.85 km/h) |
| 80 mph (128.75 km/h) | 76.78 mph (123.57 km/h) |
| 85 mph (136.79 km/h) | 81.58 mph (131.3 km/h) |
| 90 mph (144.84 km/h) | 86.38 mph (139.02 km/h) |
| 95 mph (152.89 km/h) | 91.18 mph (146.74 km/h) |
| 100 mph (160.93 km/h) | 95.98 mph (154.47 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1916 | 2225 | 2397 | 2503 | 2617 | 2698 | 2788 | 2894 | 3041 | 3187 | 3350 | 3481 | 3717 | 3978 | 4182 | 4312 | 4386 | 4655 | 5030 | 5845 |
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