Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 275/55-19 | 175/55-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.91 (785.1) | 22.58 (573.5) | -8.33 (-211.6) -27% |
| Width inches (mm) | 10.83 (275) | 6.89 (175) | -3.94 (-100) -36.4% |
| Circum. inches (mm) | 97.1 (2466.46) | 70.93 (1801.7) | -26.17 (-664.76) -27% |
| Sidewall Height inches (mm) | 5.95 (151.25) | 3.79 (96.25) | -2.17 (-55) -36.4% |
| Revolutions per mile (km) | 652.49 (405.44) | 893.23 (555.03) | 240.74 (149.59) 36.9% |
175/55-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 14.61 mph (23.51 km/h) |
| 25 mph (40.23 km/h) | 18.26 mph (29.39 km/h) |
| 30 mph (48.28 km/h) | 21.91 mph (35.27 km/h) |
| 35 mph (56.33 km/h) | 25.57 mph (41.15 km/h) |
| 40 mph (64.37 km/h) | 29.22 mph (47.02 km/h) |
| 45 mph (72.42 km/h) | 32.87 mph (52.9 km/h) |
| 50 mph (80.47 km/h) | 36.52 mph (58.78 km/h) |
| 55 mph (88.51 km/h) | 40.18 mph (64.66 km/h) |
| 60 mph (96.56 km/h) | 43.83 mph (70.54 km/h) |
| 65 mph (104.61 km/h) | 47.48 mph (76.41 km/h) |
| 70 mph (112.65 km/h) | 51.13 mph (82.29 km/h) |
| 75 mph (120.7 km/h) | 54.79 mph (88.17 km/h) |
| 80 mph (128.75 km/h) | 58.44 mph (94.05 km/h) |
| 85 mph (136.79 km/h) | 62.09 mph (99.93 km/h) |
| 90 mph (144.84 km/h) | 65.74 mph (105.8 km/h) |
| 95 mph (152.89 km/h) | 69.4 mph (111.68 km/h) |
| 100 mph (160.93 km/h) | 73.05 mph (117.56 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2273 | 2641 | 2844 | 2970 | 3105 | 3202 | 3308 | 3434 | 3608 | 3782 | 3976 | 4130 | 4411 | 4720 | 4962 | 5117 | 5204 | 5523 | 5968 | 6935 |
Better Fuel Economy Factory Ratios Increased Power
