Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 255/45-15 | 275/50-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.04 (610.5) | 25.83 (656) | 1.79 (45.5) 7.5% |
| Width inches (mm) | 10.04 (255) | 10.83 (275) | 0.79 (20) 7.8% |
| Circum. inches (mm) | 75.51 (1917.94) | 81.14 (2060.88) | 5.63 (142.94) 7.5% |
| Sidewall Height inches (mm) | 4.52 (114.75) | 5.41 (137.5) | 0.9 (22.75) 19.8% |
| Revolutions per mile (km) | 839.1 (521.39) | 780.9 (485.23) | -58.2 (-36.16) -6.9% |
275/50-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.49 mph (34.59 km/h) |
| 25 mph (40.23 km/h) | 26.86 mph (43.23 km/h) |
| 30 mph (48.28 km/h) | 32.24 mph (51.88 km/h) |
| 35 mph (56.33 km/h) | 37.61 mph (60.53 km/h) |
| 40 mph (64.37 km/h) | 42.98 mph (69.17 km/h) |
| 45 mph (72.42 km/h) | 48.35 mph (77.82 km/h) |
| 50 mph (80.47 km/h) | 53.73 mph (86.46 km/h) |
| 55 mph (88.51 km/h) | 59.1 mph (95.11 km/h) |
| 60 mph (96.56 km/h) | 64.47 mph (103.76 km/h) |
| 65 mph (104.61 km/h) | 69.84 mph (112.4 km/h) |
| 70 mph (112.65 km/h) | 75.22 mph (121.05 km/h) |
| 75 mph (120.7 km/h) | 80.59 mph (129.7 km/h) |
| 80 mph (128.75 km/h) | 85.96 mph (138.34 km/h) |
| 85 mph (136.79 km/h) | 91.33 mph (146.99 km/h) |
| 90 mph (144.84 km/h) | 96.71 mph (155.64 km/h) |
| 95 mph (152.89 km/h) | 102.08 mph (164.28 km/h) |
| 100 mph (160.93 km/h) | 107.45 mph (172.93 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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