Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 325/80-16 | 345/75-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 36.47 (926.4) | 36.37 (923.9) | -0.1 (-2.5) -0.3% |
| Width inches (mm) | 12.8 (325) | 13.58 (345) | 0.79 (20) 6.2% |
| Circum. inches (mm) | 114.58 (2910.37) | 114.27 (2902.52) | -0.31 (-7.85) -0.3% |
| Sidewall Height inches (mm) | 10.24 (260) | 10.19 (258.75) | -0.05 (-1.25) -0.5% |
| Revolutions per mile (km) | 552.97 (343.6) | 554.46 (344.53) | 1.5 (0.93) 0.3% |
345/75-16 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.95 mph (32.1 km/h) |
| 25 mph (40.23 km/h) | 24.93 mph (40.13 km/h) |
| 30 mph (48.28 km/h) | 29.92 mph (48.15 km/h) |
| 35 mph (56.33 km/h) | 34.91 mph (56.18 km/h) |
| 40 mph (64.37 km/h) | 39.89 mph (64.2 km/h) |
| 45 mph (72.42 km/h) | 44.88 mph (72.23 km/h) |
| 50 mph (80.47 km/h) | 49.87 mph (80.25 km/h) |
| 55 mph (88.51 km/h) | 54.85 mph (88.28 km/h) |
| 60 mph (96.56 km/h) | 59.84 mph (96.3 km/h) |
| 65 mph (104.61 km/h) | 64.82 mph (104.33 km/h) |
| 70 mph (112.65 km/h) | 69.81 mph (112.35 km/h) |
| 75 mph (120.7 km/h) | 74.8 mph (120.38 km/h) |
| 80 mph (128.75 km/h) | 79.78 mph (128.4 km/h) |
| 85 mph (136.79 km/h) | 84.77 mph (136.43 km/h) |
| 90 mph (144.84 km/h) | 89.76 mph (144.45 km/h) |
| 95 mph (152.89 km/h) | 94.74 mph (152.48 km/h) |
| 100 mph (160.93 km/h) | 99.73 mph (160.5 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1411 | 1639 | 1765 | 1843 | 1927 | 1987 | 2053 | 2132 | 2240 | 2348 | 2468 | 2564 | 2738 | 2930 | 3080 | 3176 | 3230 | 3428 | 3705 | 4305 |
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