Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 165/55-16 | 185/55-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.15 (587.9) | 23.01 (584.5) | -0.13 (-3.4) -0.6% |
| Width inches (mm) | 6.5 (165) | 7.28 (185) | 0.79 (20) 12.1% |
| Circum. inches (mm) | 72.71 (1846.94) | 72.29 (1836.26) | -0.42 (-10.68) -0.6% |
| Sidewall Height inches (mm) | 3.57 (90.75) | 4.01 (101.75) | 0.43 (11) 12.1% |
| Revolutions per mile (km) | 871.36 (541.43) | 876.42 (544.58) | 5.07 (3.15) 0.6% |
185/55-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.88 mph (32 km/h) |
| 25 mph (40.23 km/h) | 24.86 mph (40 km/h) |
| 30 mph (48.28 km/h) | 29.83 mph (48 km/h) |
| 35 mph (56.33 km/h) | 34.8 mph (56 km/h) |
| 40 mph (64.37 km/h) | 39.77 mph (64 km/h) |
| 45 mph (72.42 km/h) | 44.74 mph (72 km/h) |
| 50 mph (80.47 km/h) | 49.71 mph (80 km/h) |
| 55 mph (88.51 km/h) | 54.68 mph (88 km/h) |
| 60 mph (96.56 km/h) | 59.65 mph (96 km/h) |
| 65 mph (104.61 km/h) | 64.62 mph (104 km/h) |
| 70 mph (112.65 km/h) | 69.6 mph (112 km/h) |
| 75 mph (120.7 km/h) | 74.57 mph (120 km/h) |
| 80 mph (128.75 km/h) | 79.54 mph (128 km/h) |
| 85 mph (136.79 km/h) | 84.51 mph (136 km/h) |
| 90 mph (144.84 km/h) | 89.48 mph (144 km/h) |
| 95 mph (152.89 km/h) | 94.45 mph (152 km/h) |
| 100 mph (160.93 km/h) | 99.42 mph (160 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2230 | 2591 | 2790 | 2914 | 3047 | 3141 | 3246 | 3369 | 3540 | 3711 | 3901 | 4053 | 4328 | 4631 | 4869 | 5021 | 5106 | 5419 | 5856 | 6805 |
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