Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 315/35-17 | 315/35-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.68 (652.3) | 26.68 (677.7) | 1 (25.4) 3.9% |
| Width inches (mm) | 12.4 (315) | 12.4 (315) | 0 (0) 0% |
| Circum. inches (mm) | 80.68 (2049.26) | 83.82 (2129.06) | 3.14 (79.8) 3.9% |
| Sidewall Height inches (mm) | 4.34 (110.25) | 4.34 (110.25) | 0 (0) 0% |
| Revolutions per mile (km) | 785.33 (487.98) | 755.9 (469.69) | -29.43 (-18.29) -3.7% |
315/35-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.78 mph (33.44 km/h) |
| 25 mph (40.23 km/h) | 25.97 mph (41.8 km/h) |
| 30 mph (48.28 km/h) | 31.17 mph (50.16 km/h) |
| 35 mph (56.33 km/h) | 36.36 mph (58.52 km/h) |
| 40 mph (64.37 km/h) | 41.56 mph (66.88 km/h) |
| 45 mph (72.42 km/h) | 46.75 mph (75.24 km/h) |
| 50 mph (80.47 km/h) | 51.95 mph (83.6 km/h) |
| 55 mph (88.51 km/h) | 57.14 mph (91.96 km/h) |
| 60 mph (96.56 km/h) | 62.34 mph (100.32 km/h) |
| 65 mph (104.61 km/h) | 67.53 mph (108.68 km/h) |
| 70 mph (112.65 km/h) | 72.73 mph (117.04 km/h) |
| 75 mph (120.7 km/h) | 77.92 mph (125.4 km/h) |
| 80 mph (128.75 km/h) | 83.12 mph (133.76 km/h) |
| 85 mph (136.79 km/h) | 88.31 mph (142.12 km/h) |
| 90 mph (144.84 km/h) | 93.5 mph (150.48 km/h) |
| 95 mph (152.89 km/h) | 98.7 mph (158.84 km/h) |
| 100 mph (160.93 km/h) | 103.89 mph (167.2 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1924 | 2235 | 2407 | 2513 | 2628 | 2709 | 2799 | 2906 | 3053 | 3201 | 3364 | 3495 | 3733 | 3995 | 4199 | 4330 | 4404 | 4674 | 5050 | 5869 |
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