Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 315/45-16 | 315/60-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.16 (689.9) | 32.88 (835.2) | 5.72 (145.3) 21.1% |
| Width inches (mm) | 12.4 (315) | 12.4 (315) | 0 (0) 0% |
| Circum. inches (mm) | 85.33 (2167.38) | 103.3 (2623.86) | 17.97 (456.47) 21.1% |
| Sidewall Height inches (mm) | 5.58 (141.75) | 7.44 (189) | 1.86 (47.25) 33.3% |
| Revolutions per mile (km) | 742.53 (461.38) | 613.35 (381.12) | -129.18 (-80.27) -17.4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 24.21 mph (38.97 km/h) |
| 25 mph (40.23 km/h) | 30.27 mph (48.71 km/h) |
| 30 mph (48.28 km/h) | 36.32 mph (58.45 km/h) |
| 35 mph (56.33 km/h) | 42.37 mph (68.19 km/h) |
| 40 mph (64.37 km/h) | 48.42 mph (77.93 km/h) |
| 45 mph (72.42 km/h) | 54.48 mph (87.67 km/h) |
| 50 mph (80.47 km/h) | 60.53 mph (97.41 km/h) |
| 55 mph (88.51 km/h) | 66.58 mph (107.16 km/h) |
| 60 mph (96.56 km/h) | 72.64 mph (116.9 km/h) |
| 65 mph (104.61 km/h) | 78.69 mph (126.64 km/h) |
| 70 mph (112.65 km/h) | 84.74 mph (136.38 km/h) |
| 75 mph (120.7 km/h) | 90.8 mph (146.12 km/h) |
| 80 mph (128.75 km/h) | 96.85 mph (155.86 km/h) |
| 85 mph (136.79 km/h) | 102.9 mph (165.6 km/h) |
| 90 mph (144.84 km/h) | 108.95 mph (175.35 km/h) |
| 95 mph (152.89 km/h) | 115.01 mph (185.09 km/h) |
| 100 mph (160.93 km/h) | 121.06 mph (194.83 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1561 | 1813 | 1953 | 2039 | 2132 | 2198 | 2272 | 2358 | 2477 | 2597 | 2730 | 2836 | 3029 | 3241 | 3407 | 3514 | 3573 | 3793 | 4098 | 4762 |
Better Fuel Economy Factory Ratios Increased Power
