Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 175/45-15 | 205/50-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.2 (538.5) | 23.07 (586) | 1.87 (47.5) 8.8% |
| Width inches (mm) | 6.89 (175) | 8.07 (205) | 1.18 (30) 17.1% |
| Circum. inches (mm) | 66.6 (1691.75) | 72.48 (1840.97) | 5.88 (149.23) 8.8% |
| Sidewall Height inches (mm) | 3.1 (78.75) | 4.04 (102.5) | 0.94 (23.75) 30.2% |
| Revolutions per mile (km) | 951.29 (591.1) | 874.18 (543.19) | -77.11 (-47.91) -8.1% |
205/50-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.76 mph (35.03 km/h) |
| 25 mph (40.23 km/h) | 27.21 mph (43.78 km/h) |
| 30 mph (48.28 km/h) | 32.65 mph (52.54 km/h) |
| 35 mph (56.33 km/h) | 38.09 mph (61.3 km/h) |
| 40 mph (64.37 km/h) | 43.53 mph (70.05 km/h) |
| 45 mph (72.42 km/h) | 48.97 mph (78.81 km/h) |
| 50 mph (80.47 km/h) | 54.41 mph (87.57 km/h) |
| 55 mph (88.51 km/h) | 59.85 mph (96.32 km/h) |
| 60 mph (96.56 km/h) | 65.29 mph (105.08 km/h) |
| 65 mph (104.61 km/h) | 70.73 mph (113.83 km/h) |
| 70 mph (112.65 km/h) | 76.17 mph (122.59 km/h) |
| 75 mph (120.7 km/h) | 81.62 mph (131.35 km/h) |
| 80 mph (128.75 km/h) | 87.06 mph (140.1 km/h) |
| 85 mph (136.79 km/h) | 92.5 mph (148.86 km/h) |
| 90 mph (144.84 km/h) | 97.94 mph (157.62 km/h) |
| 95 mph (152.89 km/h) | 103.38 mph (166.37 km/h) |
| 100 mph (160.93 km/h) | 108.82 mph (175.13 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2225 | 2584 | 2783 | 2906 | 3039 | 3133 | 3238 | 3361 | 3531 | 3701 | 3891 | 4042 | 4317 | 4620 | 4856 | 5008 | 5093 | 5405 | 5841 | 6787 |
Better Fuel Economy Factory Ratios Increased Power
