Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 165/50-15 | 175/55-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.5 (546) | 22.58 (573.5) | 1.08 (27.5) 5% |
| Width inches (mm) | 6.5 (165) | 6.89 (175) | 0.39 (10) 6.1% |
| Circum. inches (mm) | 67.53 (1715.31) | 70.93 (1801.7) | 3.4 (86.39) 5% |
| Sidewall Height inches (mm) | 3.25 (82.5) | 3.79 (96.25) | 0.54 (13.75) 16.7% |
| Revolutions per mile (km) | 938.22 (582.98) | 893.23 (555.03) | -44.99 (-27.95) -4.8% |
175/55-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.01 mph (33.81 km/h) |
| 25 mph (40.23 km/h) | 26.26 mph (42.26 km/h) |
| 30 mph (48.28 km/h) | 31.51 mph (50.71 km/h) |
| 35 mph (56.33 km/h) | 36.76 mph (59.16 km/h) |
| 40 mph (64.37 km/h) | 42.01 mph (67.62 km/h) |
| 45 mph (72.42 km/h) | 47.27 mph (76.07 km/h) |
| 50 mph (80.47 km/h) | 52.52 mph (84.52 km/h) |
| 55 mph (88.51 km/h) | 57.77 mph (92.97 km/h) |
| 60 mph (96.56 km/h) | 63.02 mph (101.42 km/h) |
| 65 mph (104.61 km/h) | 68.27 mph (109.88 km/h) |
| 70 mph (112.65 km/h) | 73.53 mph (118.33 km/h) |
| 75 mph (120.7 km/h) | 78.78 mph (126.78 km/h) |
| 80 mph (128.75 km/h) | 84.03 mph (135.23 km/h) |
| 85 mph (136.79 km/h) | 89.28 mph (143.68 km/h) |
| 90 mph (144.84 km/h) | 94.53 mph (152.14 km/h) |
| 95 mph (152.89 km/h) | 99.78 mph (160.59 km/h) |
| 100 mph (160.93 km/h) | 105.04 mph (169.04 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 |
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