Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 275/70-20 | 275/55-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 35.16 (893) | 31.91 (810.5) | -3.25 (-82.5) -9.2% |
| Width inches (mm) | 10.83 (275) | 10.83 (275) | 0 (0) 0% |
| Circum. inches (mm) | 110.45 (2805.44) | 100.25 (2546.26) | -10.2 (-259.18) -9.2% |
| Sidewall Height inches (mm) | 7.58 (192.5) | 5.95 (151.25) | -1.62 (-41.25) -21.4% |
| Revolutions per mile (km) | 573.65 (356.45) | 632.04 (392.73) | 58.39 (36.28) 10.2% |
275/55-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.15 mph (29.21 km/h) |
| 25 mph (40.23 km/h) | 22.69 mph (36.52 km/h) |
| 30 mph (48.28 km/h) | 27.23 mph (43.82 km/h) |
| 35 mph (56.33 km/h) | 31.77 mph (51.12 km/h) |
| 40 mph (64.37 km/h) | 36.3 mph (58.43 km/h) |
| 45 mph (72.42 km/h) | 40.84 mph (65.73 km/h) |
| 50 mph (80.47 km/h) | 45.38 mph (73.03 km/h) |
| 55 mph (88.51 km/h) | 49.92 mph (80.34 km/h) |
| 60 mph (96.56 km/h) | 54.46 mph (87.64 km/h) |
| 65 mph (104.61 km/h) | 58.99 mph (94.94 km/h) |
| 70 mph (112.65 km/h) | 63.53 mph (102.25 km/h) |
| 75 mph (120.7 km/h) | 68.07 mph (109.55 km/h) |
| 80 mph (128.75 km/h) | 72.61 mph (116.85 km/h) |
| 85 mph (136.79 km/h) | 77.15 mph (124.16 km/h) |
| 90 mph (144.84 km/h) | 81.69 mph (131.46 km/h) |
| 95 mph (152.89 km/h) | 86.22 mph (138.76 km/h) |
| 100 mph (160.93 km/h) | 90.76 mph (146.07 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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