Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 215/55-16 | 185/55-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.31 (642.9) | 24.01 (609.9) | -1.3 (-33) -5.1% |
| Width inches (mm) | 8.46 (215) | 7.28 (185) | -1.18 (-30) -14% |
| Circum. inches (mm) | 79.52 (2019.73) | 75.44 (1916.06) | -4.08 (-103.67) -5.1% |
| Sidewall Height inches (mm) | 4.66 (118.25) | 4.01 (101.75) | -0.65 (-16.5) -14% |
| Revolutions per mile (km) | 796.81 (495.11) | 839.92 (521.9) | 43.11 (26.79) 5.4% |
185/55-16 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.97 mph (30.53 km/h) |
| 25 mph (40.23 km/h) | 23.72 mph (38.17 km/h) |
| 30 mph (48.28 km/h) | 28.46 mph (45.8 km/h) |
| 35 mph (56.33 km/h) | 33.2 mph (53.44 km/h) |
| 40 mph (64.37 km/h) | 37.95 mph (61.07 km/h) |
| 45 mph (72.42 km/h) | 42.69 mph (68.7 km/h) |
| 50 mph (80.47 km/h) | 47.43 mph (76.34 km/h) |
| 55 mph (88.51 km/h) | 52.18 mph (83.97 km/h) |
| 60 mph (96.56 km/h) | 56.92 mph (91.6 km/h) |
| 65 mph (104.61 km/h) | 61.66 mph (99.24 km/h) |
| 70 mph (112.65 km/h) | 66.41 mph (106.87 km/h) |
| 75 mph (120.7 km/h) | 71.15 mph (114.51 km/h) |
| 80 mph (128.75 km/h) | 75.89 mph (122.14 km/h) |
| 85 mph (136.79 km/h) | 80.64 mph (129.77 km/h) |
| 90 mph (144.84 km/h) | 85.38 mph (137.41 km/h) |
| 95 mph (152.89 km/h) | 90.12 mph (145.04 km/h) |
| 100 mph (160.93 km/h) | 94.87 mph (152.67 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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