Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 315/45-16 | 30/14.5-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.16 (689.9) | 29.91 (759.68) | 2.75 (69.78) 10.1% |
| Width inches (mm) | 12.4 (315) | 14.49 (368) | 2.09 (53) 16.8% |
| Circum. inches (mm) | 85.33 (2167.38) | 93.96 (2386.61) | 8.63 (219.22) 10.1% |
| Sidewall Height inches (mm) | 5.58 (141.75) | 6.95 (176.64) | 1.37 (34.89) 24.6% |
| Revolutions per mile (km) | 742.53 (461.38) | 674.32 (419) | -68.2 (-42.38) -9.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.02 mph (35.44 km/h) |
| 25 mph (40.23 km/h) | 27.53 mph (44.3 km/h) |
| 30 mph (48.28 km/h) | 33.03 mph (53.16 km/h) |
| 35 mph (56.33 km/h) | 38.54 mph (62.02 km/h) |
| 40 mph (64.37 km/h) | 44.05 mph (70.88 km/h) |
| 45 mph (72.42 km/h) | 49.55 mph (79.75 km/h) |
| 50 mph (80.47 km/h) | 55.06 mph (88.61 km/h) |
| 55 mph (88.51 km/h) | 60.56 mph (97.47 km/h) |
| 60 mph (96.56 km/h) | 66.07 mph (106.33 km/h) |
| 65 mph (104.61 km/h) | 71.57 mph (115.19 km/h) |
| 70 mph (112.65 km/h) | 77.08 mph (124.05 km/h) |
| 75 mph (120.7 km/h) | 82.59 mph (132.91 km/h) |
| 80 mph (128.75 km/h) | 88.09 mph (141.77 km/h) |
| 85 mph (136.79 km/h) | 93.6 mph (150.63 km/h) |
| 90 mph (144.84 km/h) | 99.1 mph (159.49 km/h) |
| 95 mph (152.89 km/h) | 104.61 mph (168.35 km/h) |
| 100 mph (160.93 km/h) | 110.11 mph (177.21 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1716 | 1994 | 2147 | 2242 | 2344 | 2417 | 2497 | 2592 | 2724 | 2855 | 3001 | 3118 | 3330 | 3563 | 3746 | 3863 | 3929 | 4170 | 4505 | 5236 |
Better Fuel Economy Factory Ratios Increased Power
