Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 145/60-15 | 225/60-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.85 (555) | 25.63 (651) | 3.78 (96) 17.3% |
| Width inches (mm) | 5.71 (145) | 8.86 (225) | 3.15 (80) 55.2% |
| Circum. inches (mm) | 68.65 (1743.58) | 80.52 (2045.18) | 11.87 (301.59) 17.3% |
| Sidewall Height inches (mm) | 3.43 (87) | 5.31 (135) | 1.89 (48) 55.2% |
| Revolutions per mile (km) | 923.01 (573.53) | 786.9 (488.95) | -136.11 (-84.58) -14.7% |
225/60-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 23.46 mph (37.75 km/h) |
| 25 mph (40.23 km/h) | 29.32 mph (47.19 km/h) |
| 30 mph (48.28 km/h) | 35.19 mph (56.63 km/h) |
| 35 mph (56.33 km/h) | 41.05 mph (66.07 km/h) |
| 40 mph (64.37 km/h) | 46.92 mph (75.51 km/h) |
| 45 mph (72.42 km/h) | 52.78 mph (84.95 km/h) |
| 50 mph (80.47 km/h) | 58.65 mph (94.39 km/h) |
| 55 mph (88.51 km/h) | 64.51 mph (103.82 km/h) |
| 60 mph (96.56 km/h) | 70.38 mph (113.26 km/h) |
| 65 mph (104.61 km/h) | 76.24 mph (122.7 km/h) |
| 70 mph (112.65 km/h) | 82.11 mph (132.14 km/h) |
| 75 mph (120.7 km/h) | 87.97 mph (141.58 km/h) |
| 80 mph (128.75 km/h) | 93.84 mph (151.02 km/h) |
| 85 mph (136.79 km/h) | 99.7 mph (160.46 km/h) |
| 90 mph (144.84 km/h) | 105.57 mph (169.89 km/h) |
| 95 mph (152.89 km/h) | 111.43 mph (179.33 km/h) |
| 100 mph (160.93 km/h) | 117.3 mph (188.77 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2003 | 2326 | 2505 | 2616 | 2735 | 2821 | 2914 | 3025 | 3178 | 3332 | 3502 | 3639 | 3886 | 4158 | 4371 | 4508 | 4584 | 4866 | 5258 | 6110 |
Better Fuel Economy Factory Ratios Increased Power
