Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 165/82-13 | 185/80-13 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.65 (600.8) | 24.65 (626.2) | 1 (25.4) 4.2% |
| Width inches (mm) | 6.5 (165) | 7.28 (185) | 0.79 (20) 12.1% |
| Circum. inches (mm) | 74.31 (1887.47) | 77.45 (1967.27) | 3.14 (79.8) 4.2% |
| Sidewall Height inches (mm) | 5.33 (135.3) | 5.83 (148) | 0.5 (12.7) 9.4% |
| Revolutions per mile (km) | 852.65 (529.81) | 818.06 (508.32) | -34.59 (-21.49) -4.1% |
185/80-13 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.85 mph (33.55 km/h) |
| 25 mph (40.23 km/h) | 26.06 mph (41.93 km/h) |
| 30 mph (48.28 km/h) | 31.27 mph (50.32 km/h) |
| 35 mph (56.33 km/h) | 36.48 mph (58.71 km/h) |
| 40 mph (64.37 km/h) | 41.69 mph (67.1 km/h) |
| 45 mph (72.42 km/h) | 46.9 mph (75.48 km/h) |
| 50 mph (80.47 km/h) | 52.11 mph (83.87 km/h) |
| 55 mph (88.51 km/h) | 57.33 mph (92.26 km/h) |
| 60 mph (96.56 km/h) | 62.54 mph (100.64 km/h) |
| 65 mph (104.61 km/h) | 67.75 mph (109.03 km/h) |
| 70 mph (112.65 km/h) | 72.96 mph (117.42 km/h) |
| 75 mph (120.7 km/h) | 78.17 mph (125.8 km/h) |
| 80 mph (128.75 km/h) | 83.38 mph (134.19 km/h) |
| 85 mph (136.79 km/h) | 88.59 mph (142.58 km/h) |
| 90 mph (144.84 km/h) | 93.8 mph (150.96 km/h) |
| 95 mph (152.89 km/h) | 99.02 mph (159.35 km/h) |
| 100 mph (160.93 km/h) | 104.23 mph (167.74 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2082 | 2418 | 2604 | 2720 | 2844 | 2932 | 3030 | 3145 | 3304 | 3464 | 3641 | 3783 | 4040 | 4323 | 4545 | 4686 | 4766 | 5058 | 5466 | 6352 |
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