Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 345/25-20 | 345/30-19 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.79 (680.5) | 27.15 (689.6) | 0.36 (9.1) 1.3% |
| Width inches (mm) | 13.58 (345) | 13.58 (345) | 0 (0) 0% |
| Circum. inches (mm) | 84.17 (2137.85) | 85.29 (2166.44) | 1.13 (28.59) 1.3% |
| Sidewall Height inches (mm) | 3.4 (86.25) | 4.07 (103.5) | 0.68 (17.25) 20% |
| Revolutions per mile (km) | 752.78 (467.76) | 742.85 (461.59) | -9.93 (-6.17) -1.3% |
345/30-19 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.27 mph (32.62 km/h) |
| 25 mph (40.23 km/h) | 25.33 mph (40.77 km/h) |
| 30 mph (48.28 km/h) | 30.4 mph (48.93 km/h) |
| 35 mph (56.33 km/h) | 35.47 mph (57.08 km/h) |
| 40 mph (64.37 km/h) | 40.53 mph (65.23 km/h) |
| 45 mph (72.42 km/h) | 45.6 mph (73.39 km/h) |
| 50 mph (80.47 km/h) | 50.67 mph (81.54 km/h) |
| 55 mph (88.51 km/h) | 55.74 mph (89.7 km/h) |
| 60 mph (96.56 km/h) | 60.8 mph (97.85 km/h) |
| 65 mph (104.61 km/h) | 65.87 mph (106.01 km/h) |
| 70 mph (112.65 km/h) | 70.94 mph (114.16 km/h) |
| 75 mph (120.7 km/h) | 76 mph (122.32 km/h) |
| 80 mph (128.75 km/h) | 81.07 mph (130.47 km/h) |
| 85 mph (136.79 km/h) | 86.14 mph (138.62 km/h) |
| 90 mph (144.84 km/h) | 91.2 mph (146.78 km/h) |
| 95 mph (152.89 km/h) | 96.27 mph (154.93 km/h) |
| 100 mph (160.93 km/h) | 101.34 mph (163.09 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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