Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 185/65-13 | 205/50-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 22.47 (570.7) | 23.07 (586) | 0.6 (15.3) 2.7% |
| Width inches (mm) | 7.28 (185) | 8.07 (205) | 0.79 (20) 10.8% |
| Circum. inches (mm) | 70.59 (1792.91) | 72.48 (1840.97) | 1.89 (48.07) 2.7% |
| Sidewall Height inches (mm) | 4.73 (120.25) | 4.04 (102.5) | -0.7 (-17.75) -14.8% |
| Revolutions per mile (km) | 897.62 (557.75) | 874.18 (543.19) | -23.44 (-14.56) -2.6% |
205/50-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.54 mph (33.05 km/h) |
| 25 mph (40.23 km/h) | 25.67 mph (41.31 km/h) |
| 30 mph (48.28 km/h) | 30.8 mph (49.57 km/h) |
| 35 mph (56.33 km/h) | 35.94 mph (57.84 km/h) |
| 40 mph (64.37 km/h) | 41.07 mph (66.1 km/h) |
| 45 mph (72.42 km/h) | 46.21 mph (74.36 km/h) |
| 50 mph (80.47 km/h) | 51.34 mph (82.62 km/h) |
| 55 mph (88.51 km/h) | 56.47 mph (90.89 km/h) |
| 60 mph (96.56 km/h) | 61.61 mph (99.15 km/h) |
| 65 mph (104.61 km/h) | 66.74 mph (107.41 km/h) |
| 70 mph (112.65 km/h) | 71.88 mph (115.67 km/h) |
| 75 mph (120.7 km/h) | 77.01 mph (123.94 km/h) |
| 80 mph (128.75 km/h) | 82.14 mph (132.2 km/h) |
| 85 mph (136.79 km/h) | 87.28 mph (140.46 km/h) |
| 90 mph (144.84 km/h) | 92.41 mph (148.72 km/h) |
| 95 mph (152.89 km/h) | 97.55 mph (156.99 km/h) |
| 100 mph (160.93 km/h) | 102.68 mph (165.25 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
