Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 175/45-15 | 175/45-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.2 (538.5) | 22.2 (563.9) | 1 (25.4) 4.7% |
| Width inches (mm) | 6.89 (175) | 6.89 (175) | 0 (0) 0% |
| Circum. inches (mm) | 66.6 (1691.75) | 69.75 (1771.54) | 3.14 (79.8) 4.7% |
| Sidewall Height inches (mm) | 3.1 (78.75) | 3.1 (78.75) | 0 (0) 0% |
| Revolutions per mile (km) | 951.29 (591.1) | 908.44 (564.48) | -42.85 (-26.63) -4.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.94 mph (33.71 km/h) |
| 25 mph (40.23 km/h) | 26.18 mph (42.13 km/h) |
| 30 mph (48.28 km/h) | 31.42 mph (50.56 km/h) |
| 35 mph (56.33 km/h) | 36.65 mph (58.98 km/h) |
| 40 mph (64.37 km/h) | 41.89 mph (67.41 km/h) |
| 45 mph (72.42 km/h) | 47.12 mph (75.84 km/h) |
| 50 mph (80.47 km/h) | 52.36 mph (84.26 km/h) |
| 55 mph (88.51 km/h) | 57.59 mph (92.69 km/h) |
| 60 mph (96.56 km/h) | 62.83 mph (101.12 km/h) |
| 65 mph (104.61 km/h) | 68.07 mph (109.54 km/h) |
| 70 mph (112.65 km/h) | 73.3 mph (117.97 km/h) |
| 75 mph (120.7 km/h) | 78.54 mph (126.39 km/h) |
| 80 mph (128.75 km/h) | 83.77 mph (134.82 km/h) |
| 85 mph (136.79 km/h) | 89.01 mph (143.25 km/h) |
| 90 mph (144.84 km/h) | 94.25 mph (151.67 km/h) |
| 95 mph (152.89 km/h) | 99.48 mph (160.1 km/h) |
| 100 mph (160.93 km/h) | 104.72 mph (168.53 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2312 | 2686 | 2892 | 3020 | 3158 | 3256 | 3364 | 3492 | 3669 | 3846 | 4043 | 4201 | 4486 | 4801 | 5047 | 5204 | 5293 | 5617 | 6070 | 7053 |
Better Fuel Economy Factory Ratios Increased Power
