Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 175/60-16 | 185/60-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.27 (616.4) | 23.74 (603) | -0.53 (-13.4) -2.2% |
| Width inches (mm) | 6.89 (175) | 7.28 (185) | 0.39 (10) 5.7% |
| Circum. inches (mm) | 76.24 (1936.48) | 74.58 (1894.38) | -1.66 (-42.1) -2.2% |
| Sidewall Height inches (mm) | 4.13 (105) | 4.37 (111) | 0.24 (6) 5.7% |
| Revolutions per mile (km) | 831.07 (516.4) | 849.54 (527.88) | 18.47 (11.48) 2.2% |
185/60-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.57 mph (31.49 km/h) |
| 25 mph (40.23 km/h) | 24.46 mph (39.36 km/h) |
| 30 mph (48.28 km/h) | 29.35 mph (47.23 km/h) |
| 35 mph (56.33 km/h) | 34.24 mph (55.1 km/h) |
| 40 mph (64.37 km/h) | 39.13 mph (62.97 km/h) |
| 45 mph (72.42 km/h) | 44.02 mph (70.85 km/h) |
| 50 mph (80.47 km/h) | 48.91 mph (78.72 km/h) |
| 55 mph (88.51 km/h) | 53.8 mph (86.59 km/h) |
| 60 mph (96.56 km/h) | 58.7 mph (94.46 km/h) |
| 65 mph (104.61 km/h) | 63.59 mph (102.33 km/h) |
| 70 mph (112.65 km/h) | 68.48 mph (110.21 km/h) |
| 75 mph (120.7 km/h) | 73.37 mph (118.08 km/h) |
| 80 mph (128.75 km/h) | 78.26 mph (125.95 km/h) |
| 85 mph (136.79 km/h) | 83.15 mph (133.82 km/h) |
| 90 mph (144.84 km/h) | 88.04 mph (141.69 km/h) |
| 95 mph (152.89 km/h) | 92.93 mph (149.56 km/h) |
| 100 mph (160.93 km/h) | 97.83 mph (157.44 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2162 | 2511 | 2705 | 2824 | 2953 | 3045 | 3146 | 3266 | 3431 | 3597 | 3781 | 3928 | 4195 | 4489 | 4719 | 4867 | 4949 | 5253 | 5676 | 6596 |
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