Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 185/75-13 | 185/60-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.93 (607.7) | 23.74 (603) | -0.19 (-4.7) -0.8% |
| Width inches (mm) | 7.28 (185) | 7.28 (185) | 0 (0) 0% |
| Circum. inches (mm) | 75.16 (1909.15) | 74.58 (1894.38) | -0.58 (-14.77) -0.8% |
| Sidewall Height inches (mm) | 5.46 (138.75) | 4.37 (111) | -1.09 (-27.75) -20% |
| Revolutions per mile (km) | 842.97 (523.79) | 849.54 (527.88) | 6.57 (4.08) 0.8% |
185/60-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.85 mph (31.94 km/h) |
| 25 mph (40.23 km/h) | 24.81 mph (39.92 km/h) |
| 30 mph (48.28 km/h) | 29.77 mph (47.91 km/h) |
| 35 mph (56.33 km/h) | 34.73 mph (55.89 km/h) |
| 40 mph (64.37 km/h) | 39.69 mph (63.88 km/h) |
| 45 mph (72.42 km/h) | 44.65 mph (71.86 km/h) |
| 50 mph (80.47 km/h) | 49.61 mph (79.85 km/h) |
| 55 mph (88.51 km/h) | 54.57 mph (87.83 km/h) |
| 60 mph (96.56 km/h) | 59.54 mph (95.81 km/h) |
| 65 mph (104.61 km/h) | 64.5 mph (103.8 km/h) |
| 70 mph (112.65 km/h) | 69.46 mph (111.78 km/h) |
| 75 mph (120.7 km/h) | 74.42 mph (119.77 km/h) |
| 80 mph (128.75 km/h) | 79.38 mph (127.75 km/h) |
| 85 mph (136.79 km/h) | 84.34 mph (135.74 km/h) |
| 90 mph (144.84 km/h) | 89.3 mph (143.72 km/h) |
| 95 mph (152.89 km/h) | 94.27 mph (151.71 km/h) |
| 100 mph (160.93 km/h) | 99.23 mph (159.69 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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