Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 185/80-13 | 205/75-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.65 (626.2) | 27.11 (688.5) | 2.45 (62.3) 9.9% |
| Width inches (mm) | 7.28 (185) | 8.07 (205) | 0.79 (20) 10.8% |
| Circum. inches (mm) | 77.45 (1967.27) | 85.16 (2162.99) | 7.71 (195.72) 9.9% |
| Sidewall Height inches (mm) | 5.83 (148) | 6.05 (153.75) | 0.23 (5.75) 3.9% |
| Revolutions per mile (km) | 818.06 (508.32) | 744.04 (462.32) | -74.02 (-46) -9% |
205/75-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.99 mph (35.39 km/h) |
| 25 mph (40.23 km/h) | 27.49 mph (44.24 km/h) |
| 30 mph (48.28 km/h) | 32.98 mph (53.08 km/h) |
| 35 mph (56.33 km/h) | 38.48 mph (61.93 km/h) |
| 40 mph (64.37 km/h) | 43.98 mph (70.78 km/h) |
| 45 mph (72.42 km/h) | 49.48 mph (79.63 km/h) |
| 50 mph (80.47 km/h) | 54.97 mph (88.47 km/h) |
| 55 mph (88.51 km/h) | 60.47 mph (97.32 km/h) |
| 60 mph (96.56 km/h) | 65.97 mph (106.17 km/h) |
| 65 mph (104.61 km/h) | 71.47 mph (115.01 km/h) |
| 70 mph (112.65 km/h) | 76.96 mph (123.86 km/h) |
| 75 mph (120.7 km/h) | 82.46 mph (132.71 km/h) |
| 80 mph (128.75 km/h) | 87.96 mph (141.56 km/h) |
| 85 mph (136.79 km/h) | 93.46 mph (150.4 km/h) |
| 90 mph (144.84 km/h) | 98.95 mph (159.25 km/h) |
| 95 mph (152.89 km/h) | 104.45 mph (168.1 km/h) |
| 100 mph (160.93 km/h) | 109.95 mph (176.95 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1893 | 2200 | 2369 | 2474 | 2586 | 2667 | 2756 | 2860 | 3005 | 3150 | 3311 | 3440 | 3674 | 3932 | 4133 | 4262 | 4335 | 4601 | 4971 | 5777 |
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