Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 185/60-14 | 185/60-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 22.74 (577.6) | 23.74 (603) | 1 (25.4) 4.4% |
| Width inches (mm) | 7.28 (185) | 7.28 (185) | 0 (0) 0% |
| Circum. inches (mm) | 71.44 (1814.58) | 74.58 (1894.38) | 3.14 (79.8) 4.4% |
| Sidewall Height inches (mm) | 4.37 (111) | 4.37 (111) | 0 (0) 0% |
| Revolutions per mile (km) | 886.89 (551.09) | 849.54 (527.88) | -37.36 (-23.21) -4.2% |
185/60-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.88 mph (33.6 km/h) |
| 25 mph (40.23 km/h) | 26.1 mph (42 km/h) |
| 30 mph (48.28 km/h) | 31.32 mph (50.4 km/h) |
| 35 mph (56.33 km/h) | 36.54 mph (58.8 km/h) |
| 40 mph (64.37 km/h) | 41.76 mph (67.2 km/h) |
| 45 mph (72.42 km/h) | 46.98 mph (75.61 km/h) |
| 50 mph (80.47 km/h) | 52.2 mph (84.01 km/h) |
| 55 mph (88.51 km/h) | 57.42 mph (92.41 km/h) |
| 60 mph (96.56 km/h) | 62.64 mph (100.81 km/h) |
| 65 mph (104.61 km/h) | 67.86 mph (109.21 km/h) |
| 70 mph (112.65 km/h) | 73.08 mph (117.61 km/h) |
| 75 mph (120.7 km/h) | 78.3 mph (126.01 km/h) |
| 80 mph (128.75 km/h) | 83.52 mph (134.41 km/h) |
| 85 mph (136.79 km/h) | 88.74 mph (142.81 km/h) |
| 90 mph (144.84 km/h) | 93.96 mph (151.21 km/h) |
| 95 mph (152.89 km/h) | 99.18 mph (159.61 km/h) |
| 100 mph (160.93 km/h) | 104.4 mph (168.01 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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