Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 185/55-15 | 175/65-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.01 (584.5) | 23.96 (608.5) | 0.94 (24) 4.1% |
| Width inches (mm) | 7.28 (185) | 6.89 (175) | -0.39 (-10) -5.4% |
| Circum. inches (mm) | 72.29 (1836.26) | 75.26 (1911.66) | 2.97 (75.4) 4.1% |
| Sidewall Height inches (mm) | 4.01 (101.75) | 4.48 (113.75) | 0.47 (12) 11.8% |
| Revolutions per mile (km) | 876.42 (544.58) | 841.86 (523.1) | -34.57 (-21.48) -3.9% |
175/65-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.82 mph (33.51 km/h) |
| 25 mph (40.23 km/h) | 26.03 mph (41.89 km/h) |
| 30 mph (48.28 km/h) | 31.23 mph (50.26 km/h) |
| 35 mph (56.33 km/h) | 36.44 mph (58.64 km/h) |
| 40 mph (64.37 km/h) | 41.64 mph (67.02 km/h) |
| 45 mph (72.42 km/h) | 46.85 mph (75.39 km/h) |
| 50 mph (80.47 km/h) | 52.05 mph (83.77 km/h) |
| 55 mph (88.51 km/h) | 57.26 mph (92.15 km/h) |
| 60 mph (96.56 km/h) | 62.46 mph (100.53 km/h) |
| 65 mph (104.61 km/h) | 67.67 mph (108.9 km/h) |
| 70 mph (112.65 km/h) | 72.87 mph (117.28 km/h) |
| 75 mph (120.7 km/h) | 78.08 mph (125.66 km/h) |
| 80 mph (128.75 km/h) | 83.28 mph (134.03 km/h) |
| 85 mph (136.79 km/h) | 88.49 mph (142.41 km/h) |
| 90 mph (144.84 km/h) | 93.7 mph (150.79 km/h) |
| 95 mph (152.89 km/h) | 98.9 mph (159.17 km/h) |
| 100 mph (160.93 km/h) | 104.11 mph (167.54 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2142 | 2489 | 2680 | 2799 | 2926 | 3018 | 3118 | 3236 | 3400 | 3565 | 3747 | 3893 | 4157 | 4449 | 4677 | 4823 | 4905 | 5205 | 5625 | 6536 |
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