Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 185/55-15 | 205/65-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.01 (584.5) | 25.49 (647.5) | 2.48 (63) 10.8% |
| Width inches (mm) | 7.28 (185) | 8.07 (205) | 0.79 (20) 10.8% |
| Circum. inches (mm) | 72.29 (1836.26) | 80.09 (2034.18) | 7.79 (197.92) 10.8% |
| Sidewall Height inches (mm) | 4.01 (101.75) | 5.25 (133.25) | 1.24 (31.5) 31% |
| Revolutions per mile (km) | 876.42 (544.58) | 791.15 (491.6) | -85.27 (-52.99) -9.7% |
205/65-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.16 mph (35.66 km/h) |
| 25 mph (40.23 km/h) | 27.69 mph (44.57 km/h) |
| 30 mph (48.28 km/h) | 33.23 mph (53.48 km/h) |
| 35 mph (56.33 km/h) | 38.77 mph (62.4 km/h) |
| 40 mph (64.37 km/h) | 44.31 mph (71.31 km/h) |
| 45 mph (72.42 km/h) | 49.85 mph (80.23 km/h) |
| 50 mph (80.47 km/h) | 55.39 mph (89.14 km/h) |
| 55 mph (88.51 km/h) | 60.93 mph (98.05 km/h) |
| 60 mph (96.56 km/h) | 66.47 mph (106.97 km/h) |
| 65 mph (104.61 km/h) | 72.01 mph (115.88 km/h) |
| 70 mph (112.65 km/h) | 77.54 mph (124.8 km/h) |
| 75 mph (120.7 km/h) | 83.08 mph (133.71 km/h) |
| 80 mph (128.75 km/h) | 88.62 mph (142.62 km/h) |
| 85 mph (136.79 km/h) | 94.16 mph (151.54 km/h) |
| 90 mph (144.84 km/h) | 99.7 mph (160.45 km/h) |
| 95 mph (152.89 km/h) | 105.24 mph (169.37 km/h) |
| 100 mph (160.93 km/h) | 110.78 mph (178.28 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2013 | 2339 | 2519 | 2630 | 2750 | 2836 | 2930 | 3041 | 3196 | 3350 | 3521 | 3658 | 3907 | 4181 | 4395 | 4532 | 4609 | 4892 | 5286 | 6143 |
Better Fuel Economy Factory Ratios Increased Power
