Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 175/85-13 | 175/80-13 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.71 (627.7) | 24.02 (610.2) | -0.69 (-17.5) -2.8% |
| Width inches (mm) | 6.89 (175) | 6.89 (175) | 0 (0) 0% |
| Circum. inches (mm) | 77.64 (1971.98) | 75.47 (1917) | -2.16 (-54.98) -2.8% |
| Sidewall Height inches (mm) | 5.86 (148.75) | 5.51 (140) | -0.34 (-8.75) -5.9% |
| Revolutions per mile (km) | 816.11 (507.1) | 839.51 (521.65) | 23.41 (14.54) 2.9% |
175/80-13 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.44 mph (31.29 km/h) |
| 25 mph (40.23 km/h) | 24.3 mph (39.11 km/h) |
| 30 mph (48.28 km/h) | 29.16 mph (46.93 km/h) |
| 35 mph (56.33 km/h) | 34.02 mph (54.76 km/h) |
| 40 mph (64.37 km/h) | 38.88 mph (62.58 km/h) |
| 45 mph (72.42 km/h) | 43.75 mph (70.4 km/h) |
| 50 mph (80.47 km/h) | 48.61 mph (78.22 km/h) |
| 55 mph (88.51 km/h) | 53.47 mph (86.05 km/h) |
| 60 mph (96.56 km/h) | 58.33 mph (93.87 km/h) |
| 65 mph (104.61 km/h) | 63.19 mph (101.69 km/h) |
| 70 mph (112.65 km/h) | 68.05 mph (109.51 km/h) |
| 75 mph (120.7 km/h) | 72.91 mph (117.34 km/h) |
| 80 mph (128.75 km/h) | 77.77 mph (125.16 km/h) |
| 85 mph (136.79 km/h) | 82.63 mph (132.98 km/h) |
| 90 mph (144.84 km/h) | 87.49 mph (140.8 km/h) |
| 95 mph (152.89 km/h) | 92.35 mph (148.63 km/h) |
| 100 mph (160.93 km/h) | 97.21 mph (156.45 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2136 | 2482 | 2673 | 2791 | 2918 | 3009 | 3109 | 3227 | 3391 | 3555 | 3736 | 3882 | 4146 | 4436 | 4664 | 4809 | 4891 | 5191 | 5609 | 6518 |
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