Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 115/80-15 | 275/50-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 22.24 (565) | 25.83 (656) | 3.58 (91) 16.1% |
| Width inches (mm) | 4.53 (115) | 10.83 (275) | 6.3 (160) 139.1% |
| Circum. inches (mm) | 69.88 (1775) | 81.14 (2060.88) | 11.26 (285.88) 16.1% |
| Sidewall Height inches (mm) | 3.62 (92) | 5.41 (137.5) | 1.79 (45.5) 49.5% |
| Revolutions per mile (km) | 906.67 (563.38) | 780.9 (485.23) | -125.77 (-78.15) -13.9% |
275/50-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 23.22 mph (37.37 km/h) |
| 25 mph (40.23 km/h) | 29.03 mph (46.71 km/h) |
| 30 mph (48.28 km/h) | 34.83 mph (56.06 km/h) |
| 35 mph (56.33 km/h) | 40.64 mph (65.4 km/h) |
| 40 mph (64.37 km/h) | 46.44 mph (74.74 km/h) |
| 45 mph (72.42 km/h) | 52.25 mph (84.08 km/h) |
| 50 mph (80.47 km/h) | 58.05 mph (93.43 km/h) |
| 55 mph (88.51 km/h) | 63.86 mph (102.77 km/h) |
| 60 mph (96.56 km/h) | 69.66 mph (112.11 km/h) |
| 65 mph (104.61 km/h) | 75.47 mph (121.46 km/h) |
| 70 mph (112.65 km/h) | 81.27 mph (130.8 km/h) |
| 75 mph (120.7 km/h) | 87.08 mph (140.14 km/h) |
| 80 mph (128.75 km/h) | 92.88 mph (149.48 km/h) |
| 85 mph (136.79 km/h) | 98.69 mph (158.83 km/h) |
| 90 mph (144.84 km/h) | 104.5 mph (168.17 km/h) |
| 95 mph (152.89 km/h) | 110.3 mph (177.51 km/h) |
| 100 mph (160.93 km/h) | 116.11 mph (186.86 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1987 | 2309 | 2486 | 2596 | 2714 | 2799 | 2892 | 3002 | 3154 | 3306 | 3476 | 3611 | 3856 | 4127 | 4338 | 4473 | 4550 | 4829 | 5218 | 6063 |
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