Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 295/60-20 | 285/55-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 33.94 (862) | 32.34 (821.5) | -1.59 (-40.5) -4.7% |
| Width inches (mm) | 11.61 (295) | 11.22 (285) | -0.39 (-10) -3.4% |
| Circum. inches (mm) | 106.62 (2708.05) | 101.61 (2580.82) | -5.01 (-127.23) -4.7% |
| Sidewall Height inches (mm) | 6.97 (177) | 6.17 (156.75) | -0.8 (-20.25) -11.4% |
| Revolutions per mile (km) | 594.28 (369.27) | 623.58 (387.47) | 29.3 (18.2) 4.9% |
285/55-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.06 mph (30.67 km/h) |
| 25 mph (40.23 km/h) | 23.83 mph (38.34 km/h) |
| 30 mph (48.28 km/h) | 28.59 mph (46.01 km/h) |
| 35 mph (56.33 km/h) | 33.36 mph (53.68 km/h) |
| 40 mph (64.37 km/h) | 38.12 mph (61.35 km/h) |
| 45 mph (72.42 km/h) | 42.89 mph (69.02 km/h) |
| 50 mph (80.47 km/h) | 47.65 mph (76.69 km/h) |
| 55 mph (88.51 km/h) | 52.42 mph (84.36 km/h) |
| 60 mph (96.56 km/h) | 57.18 mph (92.02 km/h) |
| 65 mph (104.61 km/h) | 61.95 mph (99.69 km/h) |
| 70 mph (112.65 km/h) | 66.71 mph (107.36 km/h) |
| 75 mph (120.7 km/h) | 71.48 mph (115.03 km/h) |
| 80 mph (128.75 km/h) | 76.24 mph (122.7 km/h) |
| 85 mph (136.79 km/h) | 81.01 mph (130.37 km/h) |
| 90 mph (144.84 km/h) | 85.77 mph (138.04 km/h) |
| 95 mph (152.89 km/h) | 90.54 mph (145.7 km/h) |
| 100 mph (160.93 km/h) | 95.3 mph (153.37 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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