Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 315/30-30 | 37/11.5-22 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 37.44 (951) | 36.94 (938.4) | -0.5 (-12.6) -1.3% |
| Width inches (mm) | 12.4 (315) | 11.5 (292) | -0.91 (-23) -7.3% |
| Circum. inches (mm) | 117.62 (2987.65) | 116.07 (2948.07) | -1.56 (-39.58) -1.3% |
| Sidewall Height inches (mm) | 3.72 (94.5) | 7.47 (189.8) | 3.75 (95.3) 100.8% |
| Revolutions per mile (km) | 538.66 (334.71) | 545.9 (339.2) | 7.23 (4.49) 1.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.74 mph (31.76 km/h) |
| 25 mph (40.23 km/h) | 24.67 mph (39.7 km/h) |
| 30 mph (48.28 km/h) | 29.6 mph (47.64 km/h) |
| 35 mph (56.33 km/h) | 34.54 mph (55.58 km/h) |
| 40 mph (64.37 km/h) | 39.47 mph (63.52 km/h) |
| 45 mph (72.42 km/h) | 44.4 mph (71.46 km/h) |
| 50 mph (80.47 km/h) | 49.34 mph (79.4 km/h) |
| 55 mph (88.51 km/h) | 54.27 mph (87.34 km/h) |
| 60 mph (96.56 km/h) | 59.21 mph (95.28 km/h) |
| 65 mph (104.61 km/h) | 64.14 mph (103.22 km/h) |
| 70 mph (112.65 km/h) | 69.07 mph (111.16 km/h) |
| 75 mph (120.7 km/h) | 74.01 mph (119.1 km/h) |
| 80 mph (128.75 km/h) | 78.94 mph (127.04 km/h) |
| 85 mph (136.79 km/h) | 83.87 mph (134.98 km/h) |
| 90 mph (144.84 km/h) | 88.81 mph (142.92 km/h) |
| 95 mph (152.89 km/h) | 93.74 mph (150.86 km/h) |
| 100 mph (160.93 km/h) | 98.68 mph (158.8 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1389 | 1614 | 1738 | 1815 | 1898 | 1957 | 2022 | 2099 | 2205 | 2311 | 2430 | 2524 | 2696 | 2885 | 3033 | 3127 | 3180 | 3375 | 3647 | 4239 |
Better Fuel Economy Factory Ratios Increased Power
