Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 225/55-15 | 245/60-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.74 (628.5) | 26.57 (675) | 1.83 (46.5) 7.4% |
| Width inches (mm) | 8.86 (225) | 9.65 (245) | 0.79 (20) 8.9% |
| Circum. inches (mm) | 77.74 (1974.49) | 83.49 (2120.58) | 5.75 (146.08) 7.4% |
| Sidewall Height inches (mm) | 4.87 (123.75) | 5.79 (147) | 0.92 (23.25) 18.8% |
| Revolutions per mile (km) | 815.07 (506.46) | 758.92 (471.57) | -56.15 (-34.89) -6.9% |
245/60-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.48 mph (34.57 km/h) |
| 25 mph (40.23 km/h) | 26.85 mph (43.21 km/h) |
| 30 mph (48.28 km/h) | 32.22 mph (51.85 km/h) |
| 35 mph (56.33 km/h) | 37.59 mph (60.49 km/h) |
| 40 mph (64.37 km/h) | 42.96 mph (69.14 km/h) |
| 45 mph (72.42 km/h) | 48.33 mph (77.78 km/h) |
| 50 mph (80.47 km/h) | 53.7 mph (86.42 km/h) |
| 55 mph (88.51 km/h) | 59.07 mph (95.06 km/h) |
| 60 mph (96.56 km/h) | 64.44 mph (103.7 km/h) |
| 65 mph (104.61 km/h) | 69.81 mph (112.35 km/h) |
| 70 mph (112.65 km/h) | 75.18 mph (120.99 km/h) |
| 75 mph (120.7 km/h) | 80.55 mph (129.63 km/h) |
| 80 mph (128.75 km/h) | 85.92 mph (138.27 km/h) |
| 85 mph (136.79 km/h) | 91.29 mph (146.92 km/h) |
| 90 mph (144.84 km/h) | 96.66 mph (155.56 km/h) |
| 95 mph (152.89 km/h) | 102.03 mph (164.2 km/h) |
| 100 mph (160.93 km/h) | 107.4 mph (172.84 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1931 | 2244 | 2416 | 2523 | 2638 | 2720 | 2811 | 2918 | 3065 | 3213 | 3378 | 3509 | 3748 | 4011 | 4216 | 4347 | 4421 | 4693 | 5071 | 5893 |
Better Fuel Economy Factory Ratios Increased Power
