Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 145/65-15 | 175/55-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 22.42 (569.5) | 22.58 (573.5) | 0.16 (4) 0.7% |
| Width inches (mm) | 5.71 (145) | 6.89 (175) | 1.18 (30) 20.7% |
| Circum. inches (mm) | 70.44 (1789.14) | 70.93 (1801.7) | 0.49 (12.57) 0.7% |
| Sidewall Height inches (mm) | 3.71 (94.25) | 3.79 (96.25) | 0.08 (2) 2.1% |
| Revolutions per mile (km) | 899.51 (558.93) | 893.23 (555.03) | -6.27 (-3.9) -0.7% |
175/55-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.14 mph (32.41 km/h) |
| 25 mph (40.23 km/h) | 25.18 mph (40.52 km/h) |
| 30 mph (48.28 km/h) | 30.21 mph (48.62 km/h) |
| 35 mph (56.33 km/h) | 35.25 mph (56.72 km/h) |
| 40 mph (64.37 km/h) | 40.28 mph (64.83 km/h) |
| 45 mph (72.42 km/h) | 45.32 mph (72.93 km/h) |
| 50 mph (80.47 km/h) | 50.35 mph (81.03 km/h) |
| 55 mph (88.51 km/h) | 55.39 mph (89.14 km/h) |
| 60 mph (96.56 km/h) | 60.42 mph (97.24 km/h) |
| 65 mph (104.61 km/h) | 65.46 mph (105.34 km/h) |
| 70 mph (112.65 km/h) | 70.49 mph (113.45 km/h) |
| 75 mph (120.7 km/h) | 75.53 mph (121.55 km/h) |
| 80 mph (128.75 km/h) | 80.56 mph (129.65 km/h) |
| 85 mph (136.79 km/h) | 85.6 mph (137.76 km/h) |
| 90 mph (144.84 km/h) | 90.63 mph (145.86 km/h) |
| 95 mph (152.89 km/h) | 95.67 mph (153.96 km/h) |
| 100 mph (160.93 km/h) | 100.7 mph (162.07 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2273 | 2641 | 2844 | 2970 | 3105 | 3202 | 3308 | 3434 | 3608 | 3782 | 3976 | 4130 | 4411 | 4720 | 4962 | 5117 | 5204 | 5523 | 5968 | 6935 |
Better Fuel Economy Factory Ratios Increased Power
