Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 115/70-15 | 275/50-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.34 (542) | 25.83 (656) | 4.49 (114) 21% |
| Width inches (mm) | 4.53 (115) | 10.83 (275) | 6.3 (160) 139.1% |
| Circum. inches (mm) | 67.04 (1702.74) | 81.14 (2060.88) | 14.1 (358.14) 21% |
| Sidewall Height inches (mm) | 3.17 (80.5) | 5.41 (137.5) | 2.24 (57) 70.8% |
| Revolutions per mile (km) | 945.15 (587.29) | 780.9 (485.23) | -164.25 (-102.06) -17.4% |
275/50-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 24.21 mph (38.96 km/h) |
| 25 mph (40.23 km/h) | 30.26 mph (48.7 km/h) |
| 30 mph (48.28 km/h) | 36.31 mph (58.44 km/h) |
| 35 mph (56.33 km/h) | 42.36 mph (68.17 km/h) |
| 40 mph (64.37 km/h) | 48.41 mph (77.91 km/h) |
| 45 mph (72.42 km/h) | 54.46 mph (87.65 km/h) |
| 50 mph (80.47 km/h) | 60.52 mph (97.39 km/h) |
| 55 mph (88.51 km/h) | 66.57 mph (107.13 km/h) |
| 60 mph (96.56 km/h) | 72.62 mph (116.87 km/h) |
| 65 mph (104.61 km/h) | 78.67 mph (126.61 km/h) |
| 70 mph (112.65 km/h) | 84.72 mph (136.35 km/h) |
| 75 mph (120.7 km/h) | 90.77 mph (146.09 km/h) |
| 80 mph (128.75 km/h) | 96.83 mph (155.83 km/h) |
| 85 mph (136.79 km/h) | 102.88 mph (165.57 km/h) |
| 90 mph (144.84 km/h) | 108.93 mph (175.31 km/h) |
| 95 mph (152.89 km/h) | 114.98 mph (185.05 km/h) |
| 100 mph (160.93 km/h) | 121.03 mph (194.78 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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