Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 185/82-14 | 185/65-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.94 (659) | 24.47 (621.5) | -1.48 (-37.5) -5.7% |
| Width inches (mm) | 7.28 (185) | 7.28 (185) | 0 (0) 0% |
| Circum. inches (mm) | 81.51 (2070.31) | 76.87 (1952.5) | -4.64 (-117.81) -5.7% |
| Sidewall Height inches (mm) | 5.97 (151.7) | 4.73 (120.25) | -1.24 (-31.45) -20.7% |
| Revolutions per mile (km) | 777.34 (483.02) | 824.25 (512.16) | 46.9 (29.14) 6% |
185/65-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.86 mph (30.36 km/h) |
| 25 mph (40.23 km/h) | 23.58 mph (37.94 km/h) |
| 30 mph (48.28 km/h) | 28.29 mph (45.53 km/h) |
| 35 mph (56.33 km/h) | 33.01 mph (53.12 km/h) |
| 40 mph (64.37 km/h) | 37.72 mph (60.71 km/h) |
| 45 mph (72.42 km/h) | 42.44 mph (68.3 km/h) |
| 50 mph (80.47 km/h) | 47.15 mph (75.89 km/h) |
| 55 mph (88.51 km/h) | 51.87 mph (83.48 km/h) |
| 60 mph (96.56 km/h) | 56.59 mph (91.07 km/h) |
| 65 mph (104.61 km/h) | 61.3 mph (98.65 km/h) |
| 70 mph (112.65 km/h) | 66.02 mph (106.24 km/h) |
| 75 mph (120.7 km/h) | 70.73 mph (113.83 km/h) |
| 80 mph (128.75 km/h) | 75.45 mph (121.42 km/h) |
| 85 mph (136.79 km/h) | 80.16 mph (129.01 km/h) |
| 90 mph (144.84 km/h) | 84.88 mph (136.6 km/h) |
| 95 mph (152.89 km/h) | 89.59 mph (144.19 km/h) |
| 100 mph (160.93 km/h) | 94.31 mph (151.78 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2098 | 2437 | 2624 | 2740 | 2865 | 2954 | 3053 | 3169 | 3329 | 3490 | 3668 | 3811 | 4070 | 4356 | 4579 | 4722 | 4802 | 5097 | 5507 | 6400 |
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