Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 145/80-12 | 165/65-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.13 (536.8) | 22.44 (570.1) | 1.31 (33.3) 6.2% |
| Width inches (mm) | 5.71 (145) | 6.5 (165) | 0.79 (20) 13.8% |
| Circum. inches (mm) | 66.39 (1686.41) | 70.51 (1791.02) | 4.12 (104.62) 6.2% |
| Sidewall Height inches (mm) | 4.57 (116) | 4.22 (107.25) | -0.34 (-8.75) -7.5% |
| Revolutions per mile (km) | 954.3 (592.98) | 898.56 (558.34) | -55.74 (-34.64) -5.8% |
165/65-14 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.24 mph (34.18 km/h) |
| 25 mph (40.23 km/h) | 26.55 mph (42.73 km/h) |
| 30 mph (48.28 km/h) | 31.86 mph (51.28 km/h) |
| 35 mph (56.33 km/h) | 37.17 mph (59.82 km/h) |
| 40 mph (64.37 km/h) | 42.48 mph (68.37 km/h) |
| 45 mph (72.42 km/h) | 47.79 mph (76.91 km/h) |
| 50 mph (80.47 km/h) | 53.1 mph (85.46 km/h) |
| 55 mph (88.51 km/h) | 58.41 mph (94 km/h) |
| 60 mph (96.56 km/h) | 63.72 mph (102.55 km/h) |
| 65 mph (104.61 km/h) | 69.03 mph (111.1 km/h) |
| 70 mph (112.65 km/h) | 74.34 mph (119.64 km/h) |
| 75 mph (120.7 km/h) | 79.65 mph (128.19 km/h) |
| 80 mph (128.75 km/h) | 84.96 mph (136.73 km/h) |
| 85 mph (136.79 km/h) | 90.27 mph (145.28 km/h) |
| 90 mph (144.84 km/h) | 95.58 mph (153.83 km/h) |
| 95 mph (152.89 km/h) | 100.89 mph (162.37 km/h) |
| 100 mph (160.93 km/h) | 106.2 mph (170.92 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2287 | 2656 | 2861 | 2987 | 3123 | 3221 | 3328 | 3454 | 3629 | 3805 | 3999 | 4155 | 4437 | 4748 | 4992 | 5147 | 5235 | 5556 | 6004 | 6977 |
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