Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 28/9-15 | 275/50-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.98 (710.76) | 25.83 (656) | -2.16 (-54.76) -7.7% |
| Width inches (mm) | 9.02 (229) | 10.83 (275) | 1.81 (46) 20.1% |
| Circum. inches (mm) | 87.91 (2232.92) | 81.14 (2060.88) | -6.77 (-172.03) -7.7% |
| Sidewall Height inches (mm) | 6.49 (164.88) | 5.41 (137.5) | -1.08 (-27.38) -16.6% |
| Revolutions per mile (km) | 720.74 (447.84) | 780.9 (485.23) | 60.16 (37.38) 8.3% |
275/50-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.46 mph (29.71 km/h) |
| 25 mph (40.23 km/h) | 23.07 mph (37.13 km/h) |
| 30 mph (48.28 km/h) | 27.69 mph (44.56 km/h) |
| 35 mph (56.33 km/h) | 32.3 mph (51.99 km/h) |
| 40 mph (64.37 km/h) | 36.92 mph (59.41 km/h) |
| 45 mph (72.42 km/h) | 41.53 mph (66.84 km/h) |
| 50 mph (80.47 km/h) | 46.15 mph (74.27 km/h) |
| 55 mph (88.51 km/h) | 50.76 mph (81.69 km/h) |
| 60 mph (96.56 km/h) | 55.38 mph (89.12 km/h) |
| 65 mph (104.61 km/h) | 59.99 mph (96.55 km/h) |
| 70 mph (112.65 km/h) | 64.61 mph (103.97 km/h) |
| 75 mph (120.7 km/h) | 69.22 mph (111.4 km/h) |
| 80 mph (128.75 km/h) | 73.84 mph (118.83 km/h) |
| 85 mph (136.79 km/h) | 78.45 mph (126.26 km/h) |
| 90 mph (144.84 km/h) | 83.07 mph (133.68 km/h) |
| 95 mph (152.89 km/h) | 87.68 mph (141.11 km/h) |
| 100 mph (160.93 km/h) | 92.3 mph (148.54 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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