Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 155/70-15 | 37/14.5-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.54 (598) | 37.02 (940.36) | 13.48 (342.36) 57.3% |
| Width inches (mm) | 6.1 (155) | 14.49 (368) | 8.39 (213) 137.4% |
| Circum. inches (mm) | 73.96 (1878.67) | 116.31 (2954.23) | 42.34 (1075.56) 57.3% |
| Sidewall Height inches (mm) | 4.27 (108.5) | 11.01 (279.68) | 6.74 (171.18) 157.8% |
| Revolutions per mile (km) | 856.64 (532.29) | 544.76 (338.5) | -311.88 (-193.79) -36.4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 31.45 mph (50.61 km/h) |
| 25 mph (40.23 km/h) | 39.31 mph (63.27 km/h) |
| 30 mph (48.28 km/h) | 47.18 mph (75.92 km/h) |
| 35 mph (56.33 km/h) | 55.04 mph (88.57 km/h) |
| 40 mph (64.37 km/h) | 62.9 mph (101.23 km/h) |
| 45 mph (72.42 km/h) | 70.76 mph (113.88 km/h) |
| 50 mph (80.47 km/h) | 78.63 mph (126.54 km/h) |
| 55 mph (88.51 km/h) | 86.49 mph (139.19 km/h) |
| 60 mph (96.56 km/h) | 94.35 mph (151.84 km/h) |
| 65 mph (104.61 km/h) | 102.21 mph (164.5 km/h) |
| 70 mph (112.65 km/h) | 110.08 mph (177.15 km/h) |
| 75 mph (120.7 km/h) | 117.94 mph (189.8 km/h) |
| 80 mph (128.75 km/h) | 125.8 mph (202.46 km/h) |
| 85 mph (136.79 km/h) | 133.66 mph (215.11 km/h) |
| 90 mph (144.84 km/h) | 141.53 mph (227.76 km/h) |
| 95 mph (152.89 km/h) | 149.39 mph (240.42 km/h) |
| 100 mph (160.93 km/h) | 157.25 mph (253.07 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1386 | 1610 | 1734 | 1811 | 1894 | 1953 | 2018 | 2094 | 2200 | 2307 | 2425 | 2519 | 2690 | 2879 | 3026 | 3121 | 3174 | 3368 | 3640 | 4230 |
Better Fuel Economy Factory Ratios Increased Power
