Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 145/90-16 | 185/55-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.28 (667.4) | 24.01 (609.9) | -2.26 (-57.5) -8.6% |
| Width inches (mm) | 5.71 (145) | 7.28 (185) | 1.57 (40) 27.6% |
| Circum. inches (mm) | 82.55 (2096.7) | 75.44 (1916.06) | -7.11 (-180.64) -8.6% |
| Sidewall Height inches (mm) | 5.14 (130.5) | 4.01 (101.75) | -1.13 (-28.75) -22% |
| Revolutions per mile (km) | 767.56 (476.94) | 839.92 (521.9) | 72.36 (44.96) 9.4% |
185/55-16 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.28 mph (29.41 km/h) |
| 25 mph (40.23 km/h) | 22.85 mph (36.77 km/h) |
| 30 mph (48.28 km/h) | 27.42 mph (44.12 km/h) |
| 35 mph (56.33 km/h) | 31.98 mph (51.47 km/h) |
| 40 mph (64.37 km/h) | 36.55 mph (58.83 km/h) |
| 45 mph (72.42 km/h) | 41.12 mph (66.18 km/h) |
| 50 mph (80.47 km/h) | 45.69 mph (73.53 km/h) |
| 55 mph (88.51 km/h) | 50.26 mph (80.89 km/h) |
| 60 mph (96.56 km/h) | 54.83 mph (88.24 km/h) |
| 65 mph (104.61 km/h) | 59.4 mph (95.6 km/h) |
| 70 mph (112.65 km/h) | 63.97 mph (102.95 km/h) |
| 75 mph (120.7 km/h) | 68.54 mph (110.3 km/h) |
| 80 mph (128.75 km/h) | 73.11 mph (117.66 km/h) |
| 85 mph (136.79 km/h) | 77.68 mph (125.01 km/h) |
| 90 mph (144.84 km/h) | 82.25 mph (132.36 km/h) |
| 95 mph (152.89 km/h) | 86.82 mph (139.72 km/h) |
| 100 mph (160.93 km/h) | 91.38 mph (147.07 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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