Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 215/55-17 | 185/55-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.31 (668.3) | 24.01 (609.9) | -2.3 (-58.4) -8.7% |
| Width inches (mm) | 8.46 (215) | 7.28 (185) | -1.18 (-30) -14% |
| Circum. inches (mm) | 82.66 (2099.53) | 75.44 (1916.06) | -7.22 (-183.47) -8.7% |
| Sidewall Height inches (mm) | 4.66 (118.25) | 4.01 (101.75) | -0.65 (-16.5) -14% |
| Revolutions per mile (km) | 766.53 (476.3) | 839.92 (521.9) | 73.4 (45.61) 9.6% |
185/55-16 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.25 mph (29.37 km/h) |
| 25 mph (40.23 km/h) | 22.82 mph (36.72 km/h) |
| 30 mph (48.28 km/h) | 27.38 mph (44.06 km/h) |
| 35 mph (56.33 km/h) | 31.94 mph (51.4 km/h) |
| 40 mph (64.37 km/h) | 36.5 mph (58.75 km/h) |
| 45 mph (72.42 km/h) | 41.07 mph (66.09 km/h) |
| 50 mph (80.47 km/h) | 45.63 mph (73.44 km/h) |
| 55 mph (88.51 km/h) | 50.19 mph (80.78 km/h) |
| 60 mph (96.56 km/h) | 54.76 mph (88.12 km/h) |
| 65 mph (104.61 km/h) | 59.32 mph (95.47 km/h) |
| 70 mph (112.65 km/h) | 63.88 mph (102.81 km/h) |
| 75 mph (120.7 km/h) | 68.45 mph (110.15 km/h) |
| 80 mph (128.75 km/h) | 73.01 mph (117.5 km/h) |
| 85 mph (136.79 km/h) | 77.57 mph (124.84 km/h) |
| 90 mph (144.84 km/h) | 82.14 mph (132.18 km/h) |
| 95 mph (152.89 km/h) | 86.7 mph (139.53 km/h) |
| 100 mph (160.93 km/h) | 91.26 mph (146.87 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2137 | 2483 | 2674 | 2792 | 2920 | 3011 | 3111 | 3229 | 3393 | 3556 | 3738 | 3884 | 4148 | 4439 | 4666 | 4812 | 4893 | 5194 | 5612 | 6521 |
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