Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 315/30-30 | 37/13.5-24 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 37.44 (951) | 36.96 (938.88) | -0.48 (-12.12) -1.3% |
| Width inches (mm) | 12.4 (315) | 13.5 (343) | 1.1 (28) 8.9% |
| Circum. inches (mm) | 117.62 (2987.65) | 116.13 (2949.58) | -1.5 (-38.08) -1.3% |
| Sidewall Height inches (mm) | 3.72 (94.5) | 6.48 (164.64) | 2.76 (70.14) 74.2% |
| Revolutions per mile (km) | 538.66 (334.71) | 545.62 (339.03) | 6.95 (4.32) 1.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.75 mph (31.78 km/h) |
| 25 mph (40.23 km/h) | 24.68 mph (39.72 km/h) |
| 30 mph (48.28 km/h) | 29.62 mph (47.67 km/h) |
| 35 mph (56.33 km/h) | 34.55 mph (55.61 km/h) |
| 40 mph (64.37 km/h) | 39.49 mph (63.55 km/h) |
| 45 mph (72.42 km/h) | 44.43 mph (71.5 km/h) |
| 50 mph (80.47 km/h) | 49.36 mph (79.44 km/h) |
| 55 mph (88.51 km/h) | 54.3 mph (87.39 km/h) |
| 60 mph (96.56 km/h) | 59.24 mph (95.33 km/h) |
| 65 mph (104.61 km/h) | 64.17 mph (103.27 km/h) |
| 70 mph (112.65 km/h) | 69.11 mph (111.22 km/h) |
| 75 mph (120.7 km/h) | 74.04 mph (119.16 km/h) |
| 80 mph (128.75 km/h) | 78.98 mph (127.11 km/h) |
| 85 mph (136.79 km/h) | 83.92 mph (135.05 km/h) |
| 90 mph (144.84 km/h) | 88.85 mph (143 km/h) |
| 95 mph (152.89 km/h) | 93.79 mph (150.94 km/h) |
| 100 mph (160.93 km/h) | 98.73 mph (158.88 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1388 | 1613 | 1737 | 1814 | 1897 | 1956 | 2021 | 2098 | 2204 | 2310 | 2428 | 2523 | 2694 | 2883 | 3031 | 3126 | 3179 | 3374 | 3646 | 4236 |
Better Fuel Economy Factory Ratios Increased Power
