Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 185/75-15 | 175/65-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.93 (658.5) | 23.96 (608.5) | -1.97 (-50) -7.6% |
| Width inches (mm) | 7.28 (185) | 6.89 (175) | -0.39 (-10) -5.4% |
| Circum. inches (mm) | 81.45 (2068.74) | 75.26 (1911.66) | -6.18 (-157.08) -7.6% |
| Sidewall Height inches (mm) | 5.46 (138.75) | 4.48 (113.75) | -0.98 (-25) -18% |
| Revolutions per mile (km) | 777.93 (483.39) | 841.86 (523.1) | 63.92 (39.72) 8.2% |
175/65-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.48 mph (29.74 km/h) |
| 25 mph (40.23 km/h) | 23.1 mph (37.18 km/h) |
| 30 mph (48.28 km/h) | 27.72 mph (44.61 km/h) |
| 35 mph (56.33 km/h) | 32.34 mph (52.05 km/h) |
| 40 mph (64.37 km/h) | 36.96 mph (59.49 km/h) |
| 45 mph (72.42 km/h) | 41.58 mph (66.92 km/h) |
| 50 mph (80.47 km/h) | 46.2 mph (74.36 km/h) |
| 55 mph (88.51 km/h) | 50.82 mph (81.79 km/h) |
| 60 mph (96.56 km/h) | 55.44 mph (89.23 km/h) |
| 65 mph (104.61 km/h) | 60.06 mph (96.66 km/h) |
| 70 mph (112.65 km/h) | 64.68 mph (104.1 km/h) |
| 75 mph (120.7 km/h) | 69.31 mph (111.54 km/h) |
| 80 mph (128.75 km/h) | 73.93 mph (118.97 km/h) |
| 85 mph (136.79 km/h) | 78.55 mph (126.41 km/h) |
| 90 mph (144.84 km/h) | 83.17 mph (133.84 km/h) |
| 95 mph (152.89 km/h) | 87.79 mph (141.28 km/h) |
| 100 mph (160.93 km/h) | 92.41 mph (148.71 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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