Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 315/30-19 | 315/60-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.44 (671.6) | 32.88 (835.2) | 6.44 (163.6) 24.4% |
| Width inches (mm) | 12.4 (315) | 12.4 (315) | 0 (0) 0% |
| Circum. inches (mm) | 83.07 (2109.89) | 103.3 (2623.86) | 20.23 (513.96) 24.4% |
| Sidewall Height inches (mm) | 3.72 (94.5) | 7.44 (189) | 3.72 (94.5) 100% |
| Revolutions per mile (km) | 762.76 (473.96) | 613.35 (381.12) | -149.41 (-92.84) -19.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 24.87 mph (40.03 km/h) |
| 25 mph (40.23 km/h) | 31.09 mph (50.03 km/h) |
| 30 mph (48.28 km/h) | 37.31 mph (60.04 km/h) |
| 35 mph (56.33 km/h) | 43.53 mph (70.05 km/h) |
| 40 mph (64.37 km/h) | 49.74 mph (80.06 km/h) |
| 45 mph (72.42 km/h) | 55.96 mph (90.06 km/h) |
| 50 mph (80.47 km/h) | 62.18 mph (100.07 km/h) |
| 55 mph (88.51 km/h) | 68.4 mph (110.08 km/h) |
| 60 mph (96.56 km/h) | 74.62 mph (120.08 km/h) |
| 65 mph (104.61 km/h) | 80.83 mph (130.09 km/h) |
| 70 mph (112.65 km/h) | 87.05 mph (140.1 km/h) |
| 75 mph (120.7 km/h) | 93.27 mph (150.1 km/h) |
| 80 mph (128.75 km/h) | 99.49 mph (160.11 km/h) |
| 85 mph (136.79 km/h) | 105.71 mph (170.12 km/h) |
| 90 mph (144.84 km/h) | 111.92 mph (180.12 km/h) |
| 95 mph (152.89 km/h) | 118.14 mph (190.13 km/h) |
| 100 mph (160.93 km/h) | 124.36 mph (200.14 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
