Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 175/80-14 | 185/75-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.02 (635.6) | 24.93 (633.1) | -0.1 (-2.5) -0.4% |
| Width inches (mm) | 6.89 (175) | 7.28 (185) | 0.39 (10) 5.7% |
| Circum. inches (mm) | 78.61 (1996.8) | 78.3 (1988.94) | -0.31 (-7.85) -0.4% |
| Sidewall Height inches (mm) | 5.51 (140) | 5.46 (138.75) | -0.05 (-1.25) -0.9% |
| Revolutions per mile (km) | 805.96 (500.8) | 809.15 (502.78) | 3.18 (1.98) 0.4% |
185/75-14 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.92 mph (32.06 km/h) |
| 25 mph (40.23 km/h) | 24.9 mph (40.08 km/h) |
| 30 mph (48.28 km/h) | 29.88 mph (48.09 km/h) |
| 35 mph (56.33 km/h) | 34.86 mph (56.11 km/h) |
| 40 mph (64.37 km/h) | 39.84 mph (64.12 km/h) |
| 45 mph (72.42 km/h) | 44.82 mph (72.14 km/h) |
| 50 mph (80.47 km/h) | 49.8 mph (80.15 km/h) |
| 55 mph (88.51 km/h) | 54.78 mph (88.17 km/h) |
| 60 mph (96.56 km/h) | 59.76 mph (96.18 km/h) |
| 65 mph (104.61 km/h) | 64.74 mph (104.2 km/h) |
| 70 mph (112.65 km/h) | 69.72 mph (112.21 km/h) |
| 75 mph (120.7 km/h) | 74.71 mph (120.23 km/h) |
| 80 mph (128.75 km/h) | 79.69 mph (128.24 km/h) |
| 85 mph (136.79 km/h) | 84.67 mph (136.26 km/h) |
| 90 mph (144.84 km/h) | 89.65 mph (144.27 km/h) |
| 95 mph (152.89 km/h) | 94.63 mph (152.29 km/h) |
| 100 mph (160.93 km/h) | 99.61 mph (160.3 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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