Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 315/70-18 | 35/12.5-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 35.36 (898.2) | 35.03 (889.68) | -0.34 (-8.52) -0.9% |
| Width inches (mm) | 12.4 (315) | 12.52 (318) | 0.12 (3) 1% |
| Circum. inches (mm) | 111.09 (2821.78) | 110.04 (2795.01) | -1.05 (-26.77) -0.9% |
| Sidewall Height inches (mm) | 8.68 (220.5) | 8.51 (216.24) | -0.17 (-4.26) -1.9% |
| Revolutions per mile (km) | 570.33 (354.39) | 575.79 (357.78) | 5.46 (3.39) 1% |
35/12.5-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.81 mph (31.88 km/h) |
| 25 mph (40.23 km/h) | 24.76 mph (39.85 km/h) |
| 30 mph (48.28 km/h) | 29.72 mph (47.82 km/h) |
| 35 mph (56.33 km/h) | 34.67 mph (55.79 km/h) |
| 40 mph (64.37 km/h) | 39.62 mph (63.76 km/h) |
| 45 mph (72.42 km/h) | 44.57 mph (71.73 km/h) |
| 50 mph (80.47 km/h) | 49.53 mph (79.7 km/h) |
| 55 mph (88.51 km/h) | 54.48 mph (87.67 km/h) |
| 60 mph (96.56 km/h) | 59.43 mph (95.64 km/h) |
| 65 mph (104.61 km/h) | 64.38 mph (103.62 km/h) |
| 70 mph (112.65 km/h) | 69.34 mph (111.59 km/h) |
| 75 mph (120.7 km/h) | 74.29 mph (119.56 km/h) |
| 80 mph (128.75 km/h) | 79.24 mph (127.53 km/h) |
| 85 mph (136.79 km/h) | 84.19 mph (135.5 km/h) |
| 90 mph (144.84 km/h) | 89.15 mph (143.47 km/h) |
| 95 mph (152.89 km/h) | 94.1 mph (151.44 km/h) |
| 100 mph (160.93 km/h) | 99.05 mph (159.41 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1465 | 1702 | 1833 | 1914 | 2002 | 2064 | 2132 | 2214 | 2326 | 2438 | 2563 | 2662 | 2843 | 3043 | 3199 | 3298 | 3355 | 3560 | 3847 | 4471 |
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