Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 315/40-19 | 345/30-19 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 28.92 (734.6) | 27.15 (689.6) | -1.77 (-45) -6.1% |
| Width inches (mm) | 12.4 (315) | 13.58 (345) | 1.18 (30) 9.5% |
| Circum. inches (mm) | 90.86 (2307.81) | 85.29 (2166.44) | -5.57 (-141.37) -6.1% |
| Sidewall Height inches (mm) | 4.96 (126) | 4.07 (103.5) | -0.89 (-22.5) -17.9% |
| Revolutions per mile (km) | 697.35 (433.31) | 742.85 (461.59) | 45.51 (28.28) 6.5% |
345/30-19 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.77 mph (30.22 km/h) |
| 25 mph (40.23 km/h) | 23.47 mph (37.77 km/h) |
| 30 mph (48.28 km/h) | 28.16 mph (45.32 km/h) |
| 35 mph (56.33 km/h) | 32.86 mph (52.88 km/h) |
| 40 mph (64.37 km/h) | 37.55 mph (60.43 km/h) |
| 45 mph (72.42 km/h) | 42.24 mph (67.98 km/h) |
| 50 mph (80.47 km/h) | 46.94 mph (75.54 km/h) |
| 55 mph (88.51 km/h) | 51.63 mph (83.09 km/h) |
| 60 mph (96.56 km/h) | 56.32 mph (90.65 km/h) |
| 65 mph (104.61 km/h) | 61.02 mph (98.2 km/h) |
| 70 mph (112.65 km/h) | 65.71 mph (105.75 km/h) |
| 75 mph (120.7 km/h) | 70.41 mph (113.31 km/h) |
| 80 mph (128.75 km/h) | 75.1 mph (120.86 km/h) |
| 85 mph (136.79 km/h) | 79.79 mph (128.41 km/h) |
| 90 mph (144.84 km/h) | 84.49 mph (135.97 km/h) |
| 95 mph (152.89 km/h) | 89.18 mph (143.52 km/h) |
| 100 mph (160.93 km/h) | 93.87 mph (151.08 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1890 | 2196 | 2365 | 2470 | 2582 | 2663 | 2751 | 2856 | 3001 | 3145 | 3306 | 3435 | 3668 | 3926 | 4127 | 4255 | 4328 | 4593 | 4963 | 5768 |
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