Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 175/70-14 | 185/65-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.65 (600.6) | 23.47 (596.1) | -0.18 (-4.5) -0.7% |
| Width inches (mm) | 6.89 (175) | 7.28 (185) | 0.39 (10) 5.7% |
| Circum. inches (mm) | 74.29 (1886.84) | 73.73 (1872.7) | -0.56 (-14.14) -0.7% |
| Sidewall Height inches (mm) | 4.82 (122.5) | 4.73 (120.25) | -0.09 (-2.25) -1.8% |
| Revolutions per mile (km) | 852.93 (529.99) | 859.37 (533.99) | 6.44 (4) 0.8% |
185/65-14 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.85 mph (31.95 km/h) |
| 25 mph (40.23 km/h) | 24.81 mph (39.93 km/h) |
| 30 mph (48.28 km/h) | 29.78 mph (47.92 km/h) |
| 35 mph (56.33 km/h) | 34.74 mph (55.91 km/h) |
| 40 mph (64.37 km/h) | 39.7 mph (63.89 km/h) |
| 45 mph (72.42 km/h) | 44.66 mph (71.88 km/h) |
| 50 mph (80.47 km/h) | 49.63 mph (79.86 km/h) |
| 55 mph (88.51 km/h) | 54.59 mph (87.85 km/h) |
| 60 mph (96.56 km/h) | 59.55 mph (95.84 km/h) |
| 65 mph (104.61 km/h) | 64.51 mph (103.82 km/h) |
| 70 mph (112.65 km/h) | 69.48 mph (111.81 km/h) |
| 75 mph (120.7 km/h) | 74.44 mph (119.8 km/h) |
| 80 mph (128.75 km/h) | 79.4 mph (127.78 km/h) |
| 85 mph (136.79 km/h) | 84.36 mph (135.77 km/h) |
| 90 mph (144.84 km/h) | 89.33 mph (143.76 km/h) |
| 95 mph (152.89 km/h) | 94.29 mph (151.74 km/h) |
| 100 mph (160.93 km/h) | 99.25 mph (159.73 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2187 | 2541 | 2736 | 2857 | 2987 | 3080 | 3183 | 3304 | 3471 | 3639 | 3825 | 3974 | 4244 | 4541 | 4774 | 4923 | 5007 | 5314 | 5742 | 6672 |
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