Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 175/65-15 | 185/65-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.96 (608.5) | 23.47 (596.1) | -0.49 (-12.4) -2% |
| Width inches (mm) | 6.89 (175) | 7.28 (185) | 0.39 (10) 5.7% |
| Circum. inches (mm) | 75.26 (1911.66) | 73.73 (1872.7) | -1.53 (-38.96) -2% |
| Sidewall Height inches (mm) | 4.48 (113.75) | 4.73 (120.25) | 0.26 (6.5) 5.7% |
| Revolutions per mile (km) | 841.86 (523.1) | 859.37 (533.99) | 17.51 (10.88) 2.1% |
185/65-14 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.59 mph (31.53 km/h) |
| 25 mph (40.23 km/h) | 24.49 mph (39.41 km/h) |
| 30 mph (48.28 km/h) | 29.39 mph (47.3 km/h) |
| 35 mph (56.33 km/h) | 34.29 mph (55.18 km/h) |
| 40 mph (64.37 km/h) | 39.18 mph (63.06 km/h) |
| 45 mph (72.42 km/h) | 44.08 mph (70.94 km/h) |
| 50 mph (80.47 km/h) | 48.98 mph (78.83 km/h) |
| 55 mph (88.51 km/h) | 53.88 mph (86.71 km/h) |
| 60 mph (96.56 km/h) | 58.78 mph (94.59 km/h) |
| 65 mph (104.61 km/h) | 63.68 mph (102.48 km/h) |
| 70 mph (112.65 km/h) | 68.57 mph (110.36 km/h) |
| 75 mph (120.7 km/h) | 73.47 mph (118.24 km/h) |
| 80 mph (128.75 km/h) | 78.37 mph (126.12 km/h) |
| 85 mph (136.79 km/h) | 83.27 mph (134.01 km/h) |
| 90 mph (144.84 km/h) | 88.17 mph (141.89 km/h) |
| 95 mph (152.89 km/h) | 93.06 mph (149.77 km/h) |
| 100 mph (160.93 km/h) | 97.96 mph (157.66 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2187 | 2541 | 2736 | 2857 | 2987 | 3080 | 3183 | 3304 | 3471 | 3639 | 3825 | 3974 | 4244 | 4541 | 4774 | 4923 | 5007 | 5314 | 5742 | 6672 |
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