Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 175/70-15 | 175/75-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.65 (626) | 25.33 (643.5) | 0.69 (17.5) 2.8% |
| Width inches (mm) | 6.89 (175) | 6.89 (175) | 0 (0) 0% |
| Circum. inches (mm) | 77.43 (1966.64) | 79.59 (2021.61) | 2.16 (54.98) 2.8% |
| Sidewall Height inches (mm) | 4.82 (122.5) | 5.17 (131.25) | 0.34 (8.75) 7.1% |
| Revolutions per mile (km) | 818.32 (508.48) | 796.07 (494.65) | -22.25 (-13.83) -2.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.56 mph (33.09 km/h) |
| 25 mph (40.23 km/h) | 25.7 mph (41.36 km/h) |
| 30 mph (48.28 km/h) | 30.84 mph (49.63 km/h) |
| 35 mph (56.33 km/h) | 35.98 mph (57.9 km/h) |
| 40 mph (64.37 km/h) | 41.12 mph (66.17 km/h) |
| 45 mph (72.42 km/h) | 46.26 mph (74.45 km/h) |
| 50 mph (80.47 km/h) | 51.4 mph (82.72 km/h) |
| 55 mph (88.51 km/h) | 56.54 mph (90.99 km/h) |
| 60 mph (96.56 km/h) | 61.68 mph (99.26 km/h) |
| 65 mph (104.61 km/h) | 66.82 mph (107.53 km/h) |
| 70 mph (112.65 km/h) | 71.96 mph (115.8 km/h) |
| 75 mph (120.7 km/h) | 77.1 mph (124.08 km/h) |
| 80 mph (128.75 km/h) | 82.24 mph (132.35 km/h) |
| 85 mph (136.79 km/h) | 87.38 mph (140.62 km/h) |
| 90 mph (144.84 km/h) | 92.52 mph (148.89 km/h) |
| 95 mph (152.89 km/h) | 97.66 mph (157.16 km/h) |
| 100 mph (160.93 km/h) | 102.8 mph (165.43 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 2353 | 2534 | 2647 | 2767 | 2853 | 2948 | 3060 | 3215 | 3371 | 3543 | 3681 | 3931 | 4207 | 4422 | 4560 | 4638 | 4922 | 5319 | 6181 |
Better Fuel Economy Factory Ratios Increased Power
