Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 175/85-13 | 185/75-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.71 (627.7) | 24.93 (633.1) | 0.21 (5.4) 0.9% |
| Width inches (mm) | 6.89 (175) | 7.28 (185) | 0.39 (10) 5.7% |
| Circum. inches (mm) | 77.64 (1971.98) | 78.3 (1988.94) | 0.67 (16.96) 0.9% |
| Sidewall Height inches (mm) | 5.86 (148.75) | 5.46 (138.75) | -0.39 (-10) -6.7% |
| Revolutions per mile (km) | 816.11 (507.1) | 809.15 (502.78) | -6.96 (-4.33) -0.9% |
185/75-14 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.17 mph (32.46 km/h) |
| 25 mph (40.23 km/h) | 25.22 mph (40.58 km/h) |
| 30 mph (48.28 km/h) | 30.26 mph (48.7 km/h) |
| 35 mph (56.33 km/h) | 35.3 mph (56.81 km/h) |
| 40 mph (64.37 km/h) | 40.34 mph (64.93 km/h) |
| 45 mph (72.42 km/h) | 45.39 mph (73.04 km/h) |
| 50 mph (80.47 km/h) | 50.43 mph (81.16 km/h) |
| 55 mph (88.51 km/h) | 55.47 mph (89.28 km/h) |
| 60 mph (96.56 km/h) | 60.52 mph (97.39 km/h) |
| 65 mph (104.61 km/h) | 65.56 mph (105.51 km/h) |
| 70 mph (112.65 km/h) | 70.6 mph (113.62 km/h) |
| 75 mph (120.7 km/h) | 75.65 mph (121.74 km/h) |
| 80 mph (128.75 km/h) | 80.69 mph (129.86 km/h) |
| 85 mph (136.79 km/h) | 85.73 mph (137.97 km/h) |
| 90 mph (144.84 km/h) | 90.77 mph (146.09 km/h) |
| 95 mph (152.89 km/h) | 95.82 mph (154.2 km/h) |
| 100 mph (160.93 km/h) | 100.86 mph (162.32 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2059 | 2392 | 2576 | 2690 | 2813 | 2900 | 2997 | 3111 | 3268 | 3426 | 3601 | 3741 | 3996 | 4276 | 4495 | 4635 | 4714 | 5003 | 5406 | 6283 |
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