Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 315/40-19 | 345/35-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 28.92 (734.6) | 27.51 (698.7) | -1.41 (-35.9) -4.9% |
| Width inches (mm) | 12.4 (315) | 13.58 (345) | 1.18 (30) 9.5% |
| Circum. inches (mm) | 90.86 (2307.81) | 86.42 (2195.03) | -4.44 (-112.78) -4.9% |
| Sidewall Height inches (mm) | 4.96 (126) | 4.75 (120.75) | -0.21 (-5.25) -4.2% |
| Revolutions per mile (km) | 697.35 (433.31) | 733.18 (455.57) | 35.83 (22.26) 5.1% |
345/35-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.02 mph (30.61 km/h) |
| 25 mph (40.23 km/h) | 23.78 mph (38.27 km/h) |
| 30 mph (48.28 km/h) | 28.53 mph (45.92 km/h) |
| 35 mph (56.33 km/h) | 33.29 mph (53.57 km/h) |
| 40 mph (64.37 km/h) | 38.05 mph (61.23 km/h) |
| 45 mph (72.42 km/h) | 42.8 mph (68.88 km/h) |
| 50 mph (80.47 km/h) | 47.56 mph (76.53 km/h) |
| 55 mph (88.51 km/h) | 52.31 mph (84.19 km/h) |
| 60 mph (96.56 km/h) | 57.07 mph (91.84 km/h) |
| 65 mph (104.61 km/h) | 61.82 mph (99.5 km/h) |
| 70 mph (112.65 km/h) | 66.58 mph (107.15 km/h) |
| 75 mph (120.7 km/h) | 71.33 mph (114.8 km/h) |
| 80 mph (128.75 km/h) | 76.09 mph (122.46 km/h) |
| 85 mph (136.79 km/h) | 80.85 mph (130.11 km/h) |
| 90 mph (144.84 km/h) | 85.6 mph (137.76 km/h) |
| 95 mph (152.89 km/h) | 90.36 mph (145.42 km/h) |
| 100 mph (160.93 km/h) | 95.11 mph (153.07 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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