Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 255/60-17 | 185/60-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.05 (737.8) | 23.74 (603) | -5.31 (-134.8) -18.3% |
| Width inches (mm) | 10.04 (255) | 7.28 (185) | -2.76 (-70) -27.5% |
| Circum. inches (mm) | 91.25 (2317.87) | 74.58 (1894.38) | -16.67 (-423.49) -18.3% |
| Sidewall Height inches (mm) | 6.02 (153) | 4.37 (111) | -1.65 (-42) -27.5% |
| Revolutions per mile (km) | 694.32 (431.43) | 849.54 (527.88) | 155.21 (96.45) 22.4% |
185/60-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 16.35 mph (26.31 km/h) |
| 25 mph (40.23 km/h) | 20.43 mph (32.88 km/h) |
| 30 mph (48.28 km/h) | 24.52 mph (39.46 km/h) |
| 35 mph (56.33 km/h) | 28.61 mph (46.04 km/h) |
| 40 mph (64.37 km/h) | 32.69 mph (52.61 km/h) |
| 45 mph (72.42 km/h) | 36.78 mph (59.19 km/h) |
| 50 mph (80.47 km/h) | 40.86 mph (65.77 km/h) |
| 55 mph (88.51 km/h) | 44.95 mph (72.34 km/h) |
| 60 mph (96.56 km/h) | 49.04 mph (78.92 km/h) |
| 65 mph (104.61 km/h) | 53.12 mph (85.5 km/h) |
| 70 mph (112.65 km/h) | 57.21 mph (92.07 km/h) |
| 75 mph (120.7 km/h) | 61.3 mph (98.65 km/h) |
| 80 mph (128.75 km/h) | 65.38 mph (105.22 km/h) |
| 85 mph (136.79 km/h) | 69.47 mph (111.8 km/h) |
| 90 mph (144.84 km/h) | 73.56 mph (118.38 km/h) |
| 95 mph (152.89 km/h) | 77.64 mph (124.95 km/h) |
| 100 mph (160.93 km/h) | 81.73 mph (131.53 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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