Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 325/30-19 | 345/35-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.68 (677.6) | 27.51 (698.7) | 0.83 (21.1) 3.1% |
| Width inches (mm) | 12.8 (325) | 13.58 (345) | 0.79 (20) 6.2% |
| Circum. inches (mm) | 83.81 (2128.74) | 86.42 (2195.03) | 2.61 (66.29) 3.1% |
| Sidewall Height inches (mm) | 3.84 (97.5) | 4.75 (120.75) | 0.92 (23.25) 23.8% |
| Revolutions per mile (km) | 756.01 (469.76) | 733.18 (455.57) | -22.83 (-14.19) -3% |
345/35-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.62 mph (33.19 km/h) |
| 25 mph (40.23 km/h) | 25.78 mph (41.49 km/h) |
| 30 mph (48.28 km/h) | 30.93 mph (49.78 km/h) |
| 35 mph (56.33 km/h) | 36.09 mph (58.08 km/h) |
| 40 mph (64.37 km/h) | 41.25 mph (66.38 km/h) |
| 45 mph (72.42 km/h) | 46.4 mph (74.68 km/h) |
| 50 mph (80.47 km/h) | 51.56 mph (82.97 km/h) |
| 55 mph (88.51 km/h) | 56.71 mph (91.27 km/h) |
| 60 mph (96.56 km/h) | 61.87 mph (99.57 km/h) |
| 65 mph (104.61 km/h) | 67.02 mph (107.86 km/h) |
| 70 mph (112.65 km/h) | 72.18 mph (116.16 km/h) |
| 75 mph (120.7 km/h) | 77.34 mph (124.46 km/h) |
| 80 mph (128.75 km/h) | 82.49 mph (132.76 km/h) |
| 85 mph (136.79 km/h) | 87.65 mph (141.05 km/h) |
| 90 mph (144.84 km/h) | 92.8 mph (149.35 km/h) |
| 95 mph (152.89 km/h) | 97.96 mph (157.65 km/h) |
| 100 mph (160.93 km/h) | 103.11 mph (165.95 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1866 | 2167 | 2334 | 2437 | 2549 | 2628 | 2715 | 2819 | 2961 | 3104 | 3263 | 3390 | 3620 | 3874 | 4073 | 4200 | 4271 | 4533 | 4899 | 5693 |
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