Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 155/55-14 | 185/65-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 20.71 (526.1) | 23.47 (596.1) | 2.76 (70) 13.3% |
| Width inches (mm) | 6.1 (155) | 7.28 (185) | 1.18 (30) 19.4% |
| Circum. inches (mm) | 65.07 (1652.79) | 73.73 (1872.7) | 8.66 (219.91) 13.3% |
| Sidewall Height inches (mm) | 3.36 (85.25) | 4.73 (120.25) | 1.38 (35) 41.1% |
| Revolutions per mile (km) | 973.71 (605.04) | 859.37 (533.99) | -114.34 (-71.05) -11.7% |
185/65-14 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.66 mph (36.47 km/h) |
| 25 mph (40.23 km/h) | 28.33 mph (45.59 km/h) |
| 30 mph (48.28 km/h) | 33.99 mph (54.7 km/h) |
| 35 mph (56.33 km/h) | 39.66 mph (63.82 km/h) |
| 40 mph (64.37 km/h) | 45.32 mph (72.94 km/h) |
| 45 mph (72.42 km/h) | 50.99 mph (82.06 km/h) |
| 50 mph (80.47 km/h) | 56.65 mph (91.17 km/h) |
| 55 mph (88.51 km/h) | 62.32 mph (100.29 km/h) |
| 60 mph (96.56 km/h) | 67.98 mph (109.41 km/h) |
| 65 mph (104.61 km/h) | 73.65 mph (118.53 km/h) |
| 70 mph (112.65 km/h) | 79.31 mph (127.64 km/h) |
| 75 mph (120.7 km/h) | 84.98 mph (136.76 km/h) |
| 80 mph (128.75 km/h) | 90.64 mph (145.88 km/h) |
| 85 mph (136.79 km/h) | 96.31 mph (155 km/h) |
| 90 mph (144.84 km/h) | 101.97 mph (164.11 km/h) |
| 95 mph (152.89 km/h) | 107.64 mph (173.23 km/h) |
| 100 mph (160.93 km/h) | 113.31 mph (182.35 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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