Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 185/55-16 | 185/60-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.01 (609.9) | 23.74 (603) | -0.27 (-6.9) -1.1% |
| Width inches (mm) | 7.28 (185) | 7.28 (185) | 0 (0) 0% |
| Circum. inches (mm) | 75.44 (1916.06) | 74.58 (1894.38) | -0.85 (-21.68) -1.1% |
| Sidewall Height inches (mm) | 4.01 (101.75) | 4.37 (111) | 0.36 (9.25) 9.1% |
| Revolutions per mile (km) | 839.92 (521.9) | 849.54 (527.88) | 9.61 (5.97) 1.1% |
185/60-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.77 mph (31.82 km/h) |
| 25 mph (40.23 km/h) | 24.72 mph (39.78 km/h) |
| 30 mph (48.28 km/h) | 29.66 mph (47.73 km/h) |
| 35 mph (56.33 km/h) | 34.6 mph (55.69 km/h) |
| 40 mph (64.37 km/h) | 39.55 mph (63.65 km/h) |
| 45 mph (72.42 km/h) | 44.49 mph (71.6 km/h) |
| 50 mph (80.47 km/h) | 49.43 mph (79.56 km/h) |
| 55 mph (88.51 km/h) | 54.38 mph (87.51 km/h) |
| 60 mph (96.56 km/h) | 59.32 mph (95.47 km/h) |
| 65 mph (104.61 km/h) | 64.26 mph (103.42 km/h) |
| 70 mph (112.65 km/h) | 69.21 mph (111.38 km/h) |
| 75 mph (120.7 km/h) | 74.15 mph (119.34 km/h) |
| 80 mph (128.75 km/h) | 79.09 mph (127.29 km/h) |
| 85 mph (136.79 km/h) | 84.04 mph (135.25 km/h) |
| 90 mph (144.84 km/h) | 88.98 mph (143.2 km/h) |
| 95 mph (152.89 km/h) | 93.93 mph (151.16 km/h) |
| 100 mph (160.93 km/h) | 98.87 mph (159.11 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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