Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 195/50-15 | 225/45-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 22.68 (576) | 22.97 (583.5) | 0.3 (7.5) 1.3% |
| Width inches (mm) | 7.68 (195) | 8.86 (225) | 1.18 (30) 15.4% |
| Circum. inches (mm) | 71.24 (1809.56) | 72.17 (1833.12) | 0.93 (23.56) 1.3% |
| Sidewall Height inches (mm) | 3.84 (97.5) | 3.99 (101.25) | 0.15 (3.75) 3.8% |
| Revolutions per mile (km) | 889.36 (552.62) | 877.93 (545.52) | -11.43 (-7.1) -1.3% |
225/45-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.26 mph (32.61 km/h) |
| 25 mph (40.23 km/h) | 25.33 mph (40.76 km/h) |
| 30 mph (48.28 km/h) | 30.39 mph (48.91 km/h) |
| 35 mph (56.33 km/h) | 35.46 mph (57.06 km/h) |
| 40 mph (64.37 km/h) | 40.52 mph (65.21 km/h) |
| 45 mph (72.42 km/h) | 45.59 mph (73.36 km/h) |
| 50 mph (80.47 km/h) | 50.65 mph (81.52 km/h) |
| 55 mph (88.51 km/h) | 55.72 mph (89.67 km/h) |
| 60 mph (96.56 km/h) | 60.78 mph (97.82 km/h) |
| 65 mph (104.61 km/h) | 65.85 mph (105.97 km/h) |
| 70 mph (112.65 km/h) | 70.91 mph (114.12 km/h) |
| 75 mph (120.7 km/h) | 75.98 mph (122.27 km/h) |
| 80 mph (128.75 km/h) | 81.04 mph (130.42 km/h) |
| 85 mph (136.79 km/h) | 86.11 mph (138.58 km/h) |
| 90 mph (144.84 km/h) | 91.17 mph (146.73 km/h) |
| 95 mph (152.89 km/h) | 96.24 mph (154.88 km/h) |
| 100 mph (160.93 km/h) | 101.3 mph (163.03 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
