Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 185/65-13 | 185/70-13 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 22.47 (570.7) | 23.2 (589.2) | 0.73 (18.5) 3.2% |
| Width inches (mm) | 7.28 (185) | 7.28 (185) | 0 (0) 0% |
| Circum. inches (mm) | 70.59 (1792.91) | 72.88 (1851.03) | 2.29 (58.12) 3.2% |
| Sidewall Height inches (mm) | 4.73 (120.25) | 5.1 (129.5) | 0.36 (9.25) 7.7% |
| Revolutions per mile (km) | 897.62 (557.75) | 869.43 (540.24) | -28.18 (-17.51) -3.1% |
185/70-13 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.65 mph (33.23 km/h) |
| 25 mph (40.23 km/h) | 25.81 mph (41.54 km/h) |
| 30 mph (48.28 km/h) | 30.97 mph (49.85 km/h) |
| 35 mph (56.33 km/h) | 36.13 mph (58.15 km/h) |
| 40 mph (64.37 km/h) | 41.3 mph (66.46 km/h) |
| 45 mph (72.42 km/h) | 46.46 mph (74.77 km/h) |
| 50 mph (80.47 km/h) | 51.62 mph (83.08 km/h) |
| 55 mph (88.51 km/h) | 56.78 mph (91.38 km/h) |
| 60 mph (96.56 km/h) | 61.94 mph (99.69 km/h) |
| 65 mph (104.61 km/h) | 67.11 mph (108 km/h) |
| 70 mph (112.65 km/h) | 72.27 mph (116.31 km/h) |
| 75 mph (120.7 km/h) | 77.43 mph (124.61 km/h) |
| 80 mph (128.75 km/h) | 82.59 mph (132.92 km/h) |
| 85 mph (136.79 km/h) | 87.76 mph (141.23 km/h) |
| 90 mph (144.84 km/h) | 92.92 mph (149.54 km/h) |
| 95 mph (152.89 km/h) | 98.08 mph (157.84 km/h) |
| 100 mph (160.93 km/h) | 103.24 mph (166.15 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2213 | 2570 | 2768 | 2890 | 3022 | 3116 | 3220 | 3342 | 3512 | 3681 | 3870 | 4020 | 4293 | 4595 | 4830 | 4981 | 5065 | 5376 | 5809 | 6751 |
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