Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 145/80-14 | 165/70-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.13 (587.6) | 24.09 (612) | 0.96 (24.4) 4.2% |
| Width inches (mm) | 5.71 (145) | 6.5 (165) | 0.79 (20) 13.8% |
| Circum. inches (mm) | 72.68 (1846) | 75.7 (1922.65) | 3.02 (76.65) 4.2% |
| Sidewall Height inches (mm) | 4.57 (116) | 4.55 (115.5) | -0.02 (-0.5) -0.4% |
| Revolutions per mile (km) | 871.8 (541.71) | 837.04 (520.11) | -34.76 (-21.6) -4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.83 mph (33.52 km/h) |
| 25 mph (40.23 km/h) | 26.04 mph (41.9 km/h) |
| 30 mph (48.28 km/h) | 31.25 mph (50.29 km/h) |
| 35 mph (56.33 km/h) | 36.45 mph (58.67 km/h) |
| 40 mph (64.37 km/h) | 41.66 mph (67.05 km/h) |
| 45 mph (72.42 km/h) | 46.87 mph (75.43 km/h) |
| 50 mph (80.47 km/h) | 52.08 mph (83.81 km/h) |
| 55 mph (88.51 km/h) | 57.28 mph (92.19 km/h) |
| 60 mph (96.56 km/h) | 62.49 mph (100.57 km/h) |
| 65 mph (104.61 km/h) | 67.7 mph (108.95 km/h) |
| 70 mph (112.65 km/h) | 72.91 mph (117.33 km/h) |
| 75 mph (120.7 km/h) | 78.11 mph (125.71 km/h) |
| 80 mph (128.75 km/h) | 83.32 mph (134.09 km/h) |
| 85 mph (136.79 km/h) | 88.53 mph (142.47 km/h) |
| 90 mph (144.84 km/h) | 93.74 mph (150.86 km/h) |
| 95 mph (152.89 km/h) | 98.94 mph (159.24 km/h) |
| 100 mph (160.93 km/h) | 104.15 mph (167.62 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2130 | 2475 | 2665 | 2783 | 2910 | 3000 | 3100 | 3218 | 3381 | 3544 | 3725 | 3870 | 4133 | 4423 | 4650 | 4795 | 4877 | 5176 | 5593 | 6499 |
Better Fuel Economy Factory Ratios Increased Power
