Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 275/80-20 | 36/10.5-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 37.32 (948) | 35.98 (913.84) | -1.34 (-34.16) -3.6% |
| Width inches (mm) | 10.83 (275) | 10.51 (267) | -0.31 (-8) -2.9% |
| Circum. inches (mm) | 117.25 (2978.23) | 113.03 (2870.91) | -4.23 (-107.32) -3.6% |
| Sidewall Height inches (mm) | 8.66 (220) | 7.99 (202.92) | -0.67 (-17.08) -7.8% |
| Revolutions per mile (km) | 540.37 (335.77) | 560.57 (348.32) | 20.2 (12.55) 3.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.28 mph (31.03 km/h) |
| 25 mph (40.23 km/h) | 24.1 mph (38.78 km/h) |
| 30 mph (48.28 km/h) | 28.92 mph (46.54 km/h) |
| 35 mph (56.33 km/h) | 33.74 mph (54.3 km/h) |
| 40 mph (64.37 km/h) | 38.56 mph (62.05 km/h) |
| 45 mph (72.42 km/h) | 43.38 mph (69.81 km/h) |
| 50 mph (80.47 km/h) | 48.2 mph (77.57 km/h) |
| 55 mph (88.51 km/h) | 53.02 mph (85.32 km/h) |
| 60 mph (96.56 km/h) | 57.84 mph (93.08 km/h) |
| 65 mph (104.61 km/h) | 62.66 mph (100.84 km/h) |
| 70 mph (112.65 km/h) | 67.48 mph (108.59 km/h) |
| 75 mph (120.7 km/h) | 72.3 mph (116.35 km/h) |
| 80 mph (128.75 km/h) | 77.12 mph (124.11 km/h) |
| 85 mph (136.79 km/h) | 81.94 mph (131.87 km/h) |
| 90 mph (144.84 km/h) | 86.76 mph (139.62 km/h) |
| 95 mph (152.89 km/h) | 91.58 mph (147.38 km/h) |
| 100 mph (160.93 km/h) | 96.4 mph (155.14 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1427 | 1657 | 1785 | 1864 | 1949 | 2009 | 2076 | 2155 | 2264 | 2374 | 2495 | 2592 | 2768 | 2962 | 3114 | 3211 | 3266 | 3466 | 3745 | 4352 |
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