Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 315/45-16 | 37.5/12.5-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.16 (689.9) | 37.53 (953.36) | 10.37 (263.46) 38.2% |
| Width inches (mm) | 12.4 (315) | 12.52 (318) | 0.12 (3) 1% |
| Circum. inches (mm) | 85.33 (2167.38) | 117.92 (2995.07) | 32.59 (827.68) 38.2% |
| Sidewall Height inches (mm) | 5.58 (141.75) | 10.77 (273.48) | 5.19 (131.73) 92.9% |
| Revolutions per mile (km) | 742.53 (461.38) | 537.33 (333.88) | -205.2 (-127.5) -27.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 27.64 mph (44.48 km/h) |
| 25 mph (40.23 km/h) | 34.55 mph (55.6 km/h) |
| 30 mph (48.28 km/h) | 41.46 mph (66.72 km/h) |
| 35 mph (56.33 km/h) | 48.37 mph (77.84 km/h) |
| 40 mph (64.37 km/h) | 55.28 mph (88.96 km/h) |
| 45 mph (72.42 km/h) | 62.18 mph (100.08 km/h) |
| 50 mph (80.47 km/h) | 69.09 mph (111.2 km/h) |
| 55 mph (88.51 km/h) | 76 mph (122.32 km/h) |
| 60 mph (96.56 km/h) | 82.91 mph (133.44 km/h) |
| 65 mph (104.61 km/h) | 89.82 mph (144.56 km/h) |
| 70 mph (112.65 km/h) | 96.73 mph (155.67 km/h) |
| 75 mph (120.7 km/h) | 103.64 mph (166.79 km/h) |
| 80 mph (128.75 km/h) | 110.55 mph (177.91 km/h) |
| 85 mph (136.79 km/h) | 117.46 mph (189.03 km/h) |
| 90 mph (144.84 km/h) | 124.37 mph (200.15 km/h) |
| 95 mph (152.89 km/h) | 131.28 mph (211.27 km/h) |
| 100 mph (160.93 km/h) | 138.19 mph (222.39 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1367 | 1589 | 1711 | 1786 | 1868 | 1926 | 1990 | 2066 | 2170 | 2275 | 2392 | 2485 | 2653 | 2840 | 2985 | 3078 | 3130 | 3323 | 3590 | 4172 |
Better Fuel Economy Factory Ratios Increased Power
