Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 265/50-20 | 275/55-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.43 (773) | 31.91 (810.5) | 1.48 (37.5) 4.9% |
| Width inches (mm) | 10.43 (265) | 10.83 (275) | 0.39 (10) 3.8% |
| Circum. inches (mm) | 95.61 (2428.45) | 100.25 (2546.26) | 4.64 (117.81) 4.9% |
| Sidewall Height inches (mm) | 5.22 (132.5) | 5.95 (151.25) | 0.74 (18.75) 14.2% |
| Revolutions per mile (km) | 662.7 (411.78) | 632.04 (392.73) | -30.66 (-19.05) -4.6% |
275/55-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.97 mph (33.75 km/h) |
| 25 mph (40.23 km/h) | 26.21 mph (42.19 km/h) |
| 30 mph (48.28 km/h) | 31.46 mph (50.62 km/h) |
| 35 mph (56.33 km/h) | 36.7 mph (59.06 km/h) |
| 40 mph (64.37 km/h) | 41.94 mph (67.5 km/h) |
| 45 mph (72.42 km/h) | 47.18 mph (75.93 km/h) |
| 50 mph (80.47 km/h) | 52.43 mph (84.37 km/h) |
| 55 mph (88.51 km/h) | 57.67 mph (92.81 km/h) |
| 60 mph (96.56 km/h) | 62.91 mph (101.25 km/h) |
| 65 mph (104.61 km/h) | 68.15 mph (109.68 km/h) |
| 70 mph (112.65 km/h) | 73.4 mph (118.12 km/h) |
| 75 mph (120.7 km/h) | 78.64 mph (126.56 km/h) |
| 80 mph (128.75 km/h) | 83.88 mph (134.99 km/h) |
| 85 mph (136.79 km/h) | 89.12 mph (143.43 km/h) |
| 90 mph (144.84 km/h) | 94.37 mph (151.87 km/h) |
| 95 mph (152.89 km/h) | 99.61 mph (160.3 km/h) |
| 100 mph (160.93 km/h) | 104.85 mph (168.74 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1608 | 1869 | 2012 | 2101 | 2197 | 2265 | 2341 | 2430 | 2553 | 2676 | 2813 | 2923 | 3121 | 3340 | 3511 | 3621 | 3682 | 3908 | 4223 | 4907 |
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