Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 145/65-14 | 145/65-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.42 (544.1) | 22.42 (569.5) | 1 (25.4) 4.7% |
| Width inches (mm) | 5.71 (145) | 5.71 (145) | 0 (0) 0% |
| Circum. inches (mm) | 67.3 (1709.34) | 70.44 (1789.14) | 3.14 (79.8) 4.7% |
| Sidewall Height inches (mm) | 3.71 (94.25) | 3.71 (94.25) | 0 (0) 0% |
| Revolutions per mile (km) | 941.5 (585.02) | 899.51 (558.93) | -41.99 (-26.09) -4.5% |
145/65-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.93 mph (33.69 km/h) |
| 25 mph (40.23 km/h) | 26.17 mph (42.11 km/h) |
| 30 mph (48.28 km/h) | 31.4 mph (50.53 km/h) |
| 35 mph (56.33 km/h) | 36.63 mph (58.96 km/h) |
| 40 mph (64.37 km/h) | 41.87 mph (67.38 km/h) |
| 45 mph (72.42 km/h) | 47.1 mph (75.8 km/h) |
| 50 mph (80.47 km/h) | 52.33 mph (84.22 km/h) |
| 55 mph (88.51 km/h) | 57.57 mph (92.65 km/h) |
| 60 mph (96.56 km/h) | 62.8 mph (101.07 km/h) |
| 65 mph (104.61 km/h) | 68.03 mph (109.49 km/h) |
| 70 mph (112.65 km/h) | 73.27 mph (117.91 km/h) |
| 75 mph (120.7 km/h) | 78.5 mph (126.34 km/h) |
| 80 mph (128.75 km/h) | 83.73 mph (134.76 km/h) |
| 85 mph (136.79 km/h) | 88.97 mph (143.18 km/h) |
| 90 mph (144.84 km/h) | 94.2 mph (151.6 km/h) |
| 95 mph (152.89 km/h) | 99.43 mph (160.03 km/h) |
| 100 mph (160.93 km/h) | 104.67 mph (168.45 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2289 | 2659 | 2864 | 2990 | 3127 | 3224 | 3331 | 3458 | 3633 | 3809 | 4003 | 4159 | 4442 | 4753 | 4997 | 5153 | 5241 | 5562 | 6010 | 6984 |
Better Fuel Economy Factory Ratios Increased Power
