Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 165/80-14 | 185/65-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.39 (619.6) | 23.47 (596.1) | -0.93 (-23.5) -3.8% |
| Width inches (mm) | 6.5 (165) | 7.28 (185) | 0.79 (20) 12.1% |
| Circum. inches (mm) | 76.64 (1946.53) | 73.73 (1872.7) | -2.91 (-73.83) -3.8% |
| Sidewall Height inches (mm) | 5.2 (132) | 4.73 (120.25) | -0.46 (-11.75) -8.9% |
| Revolutions per mile (km) | 826.78 (513.73) | 859.37 (533.99) | 32.59 (20.25) 3.9% |
185/65-14 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.24 mph (30.97 km/h) |
| 25 mph (40.23 km/h) | 24.05 mph (38.71 km/h) |
| 30 mph (48.28 km/h) | 28.86 mph (46.45 km/h) |
| 35 mph (56.33 km/h) | 33.67 mph (54.19 km/h) |
| 40 mph (64.37 km/h) | 38.48 mph (61.93 km/h) |
| 45 mph (72.42 km/h) | 43.29 mph (69.67 km/h) |
| 50 mph (80.47 km/h) | 48.1 mph (77.42 km/h) |
| 55 mph (88.51 km/h) | 52.91 mph (85.16 km/h) |
| 60 mph (96.56 km/h) | 57.72 mph (92.9 km/h) |
| 65 mph (104.61 km/h) | 62.53 mph (100.64 km/h) |
| 70 mph (112.65 km/h) | 67.35 mph (108.38 km/h) |
| 75 mph (120.7 km/h) | 72.16 mph (116.12 km/h) |
| 80 mph (128.75 km/h) | 76.97 mph (123.86 km/h) |
| 85 mph (136.79 km/h) | 81.78 mph (131.61 km/h) |
| 90 mph (144.84 km/h) | 86.59 mph (139.35 km/h) |
| 95 mph (152.89 km/h) | 91.4 mph (147.09 km/h) |
| 100 mph (160.93 km/h) | 96.21 mph (154.83 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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