Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 295/55-20 | 285/55-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 32.78 (832.5) | 32.34 (821.5) | -0.43 (-11) -1.3% |
| Width inches (mm) | 11.61 (295) | 11.22 (285) | -0.39 (-10) -3.4% |
| Circum. inches (mm) | 102.97 (2615.38) | 101.61 (2580.82) | -1.36 (-34.56) -1.3% |
| Sidewall Height inches (mm) | 6.39 (162.25) | 6.17 (156.75) | -0.22 (-5.5) -3.4% |
| Revolutions per mile (km) | 615.34 (382.35) | 623.58 (387.47) | 8.24 (5.12) 1.3% |
285/55-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.74 mph (31.76 km/h) |
| 25 mph (40.23 km/h) | 24.67 mph (39.7 km/h) |
| 30 mph (48.28 km/h) | 29.6 mph (47.64 km/h) |
| 35 mph (56.33 km/h) | 34.54 mph (55.58 km/h) |
| 40 mph (64.37 km/h) | 39.47 mph (63.52 km/h) |
| 45 mph (72.42 km/h) | 44.41 mph (71.46 km/h) |
| 50 mph (80.47 km/h) | 49.34 mph (79.4 km/h) |
| 55 mph (88.51 km/h) | 54.27 mph (87.34 km/h) |
| 60 mph (96.56 km/h) | 59.21 mph (95.28 km/h) |
| 65 mph (104.61 km/h) | 64.14 mph (103.23 km/h) |
| 70 mph (112.65 km/h) | 69.08 mph (111.17 km/h) |
| 75 mph (120.7 km/h) | 74.01 mph (119.11 km/h) |
| 80 mph (128.75 km/h) | 78.94 mph (127.05 km/h) |
| 85 mph (136.79 km/h) | 83.88 mph (134.99 km/h) |
| 90 mph (144.84 km/h) | 88.81 mph (142.93 km/h) |
| 95 mph (152.89 km/h) | 93.74 mph (150.87 km/h) |
| 100 mph (160.93 km/h) | 98.68 mph (158.81 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1587 | 1843 | 1985 | 2073 | 2168 | 2235 | 2309 | 2397 | 2519 | 2640 | 2775 | 2883 | 3079 | 3295 | 3464 | 3572 | 3633 | 3856 | 4166 | 4842 |
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