Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 190/60-15 | 225/45-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.98 (609) | 22.97 (583.5) | -1 (-25.5) -4.2% |
| Width inches (mm) | 7.48 (190) | 8.86 (225) | 1.38 (35) 18.4% |
| Circum. inches (mm) | 75.32 (1913.23) | 72.17 (1833.12) | -3.15 (-80.11) -4.2% |
| Sidewall Height inches (mm) | 4.49 (114) | 3.99 (101.25) | -0.5 (-12.75) -11.2% |
| Revolutions per mile (km) | 841.17 (522.68) | 877.93 (545.52) | 36.76 (22.84) 4.4% |
225/45-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.16 mph (30.84 km/h) |
| 25 mph (40.23 km/h) | 23.95 mph (38.55 km/h) |
| 30 mph (48.28 km/h) | 28.74 mph (46.26 km/h) |
| 35 mph (56.33 km/h) | 33.53 mph (53.97 km/h) |
| 40 mph (64.37 km/h) | 38.33 mph (61.68 km/h) |
| 45 mph (72.42 km/h) | 43.12 mph (69.39 km/h) |
| 50 mph (80.47 km/h) | 47.91 mph (77.1 km/h) |
| 55 mph (88.51 km/h) | 52.7 mph (84.81 km/h) |
| 60 mph (96.56 km/h) | 57.49 mph (92.52 km/h) |
| 65 mph (104.61 km/h) | 62.28 mph (100.23 km/h) |
| 70 mph (112.65 km/h) | 67.07 mph (107.94 km/h) |
| 75 mph (120.7 km/h) | 71.86 mph (115.65 km/h) |
| 80 mph (128.75 km/h) | 76.65 mph (123.36 km/h) |
| 85 mph (136.79 km/h) | 81.44 mph (131.07 km/h) |
| 90 mph (144.84 km/h) | 86.23 mph (138.78 km/h) |
| 95 mph (152.89 km/h) | 91.02 mph (146.49 km/h) |
| 100 mph (160.93 km/h) | 95.81 mph (154.2 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2234 | 2595 | 2795 | 2919 | 3052 | 3147 | 3251 | 3375 | 3546 | 3717 | 3907 | 4060 | 4335 | 4639 | 4877 | 5029 | 5115 | 5429 | 5866 | 6817 |
Better Fuel Economy Factory Ratios Increased Power
