Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 180/80-13 | 205/75-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.34 (618.2) | 27.11 (688.5) | 2.77 (70.3) 11.4% |
| Width inches (mm) | 7.09 (180) | 8.07 (205) | 0.98 (25) 13.9% |
| Circum. inches (mm) | 76.46 (1942.13) | 85.16 (2162.99) | 8.7 (220.85) 11.4% |
| Sidewall Height inches (mm) | 5.67 (144) | 6.05 (153.75) | 0.38 (9.75) 6.8% |
| Revolutions per mile (km) | 828.65 (514.9) | 744.04 (462.32) | -84.61 (-52.57) -10.2% |
205/75-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.27 mph (35.85 km/h) |
| 25 mph (40.23 km/h) | 27.84 mph (44.81 km/h) |
| 30 mph (48.28 km/h) | 33.41 mph (53.77 km/h) |
| 35 mph (56.33 km/h) | 38.98 mph (62.73 km/h) |
| 40 mph (64.37 km/h) | 44.55 mph (71.69 km/h) |
| 45 mph (72.42 km/h) | 50.12 mph (80.66 km/h) |
| 50 mph (80.47 km/h) | 55.69 mph (89.62 km/h) |
| 55 mph (88.51 km/h) | 61.25 mph (98.58 km/h) |
| 60 mph (96.56 km/h) | 66.82 mph (107.54 km/h) |
| 65 mph (104.61 km/h) | 72.39 mph (116.5 km/h) |
| 70 mph (112.65 km/h) | 77.96 mph (125.47 km/h) |
| 75 mph (120.7 km/h) | 83.53 mph (134.43 km/h) |
| 80 mph (128.75 km/h) | 89.1 mph (143.39 km/h) |
| 85 mph (136.79 km/h) | 94.67 mph (152.35 km/h) |
| 90 mph (144.84 km/h) | 100.23 mph (161.31 km/h) |
| 95 mph (152.89 km/h) | 105.8 mph (170.27 km/h) |
| 100 mph (160.93 km/h) | 111.37 mph (179.24 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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