Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 295/80-20 | 285/75-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 38.58 (980) | 33.83 (859.3) | -4.75 (-120.7) -12.3% |
| Width inches (mm) | 11.61 (295) | 11.22 (285) | -0.39 (-10) -3.4% |
| Circum. inches (mm) | 121.21 (3078.76) | 106.28 (2699.57) | -14.93 (-379.19) -12.3% |
| Sidewall Height inches (mm) | 9.29 (236) | 8.42 (213.75) | -0.88 (-22.25) -9.4% |
| Revolutions per mile (km) | 522.72 (324.81) | 596.15 (370.43) | 73.42 (45.62) 14% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 17.54 mph (28.22 km/h) |
| 25 mph (40.23 km/h) | 21.92 mph (35.28 km/h) |
| 30 mph (48.28 km/h) | 26.31 mph (42.33 km/h) |
| 35 mph (56.33 km/h) | 30.69 mph (49.39 km/h) |
| 40 mph (64.37 km/h) | 35.07 mph (56.45 km/h) |
| 45 mph (72.42 km/h) | 39.46 mph (63.5 km/h) |
| 50 mph (80.47 km/h) | 43.84 mph (70.56 km/h) |
| 55 mph (88.51 km/h) | 48.23 mph (77.61 km/h) |
| 60 mph (96.56 km/h) | 52.61 mph (84.67 km/h) |
| 65 mph (104.61 km/h) | 56.99 mph (91.72 km/h) |
| 70 mph (112.65 km/h) | 61.38 mph (98.78 km/h) |
| 75 mph (120.7 km/h) | 65.76 mph (105.84 km/h) |
| 80 mph (128.75 km/h) | 70.15 mph (112.89 km/h) |
| 85 mph (136.79 km/h) | 74.53 mph (119.95 km/h) |
| 90 mph (144.84 km/h) | 78.92 mph (127 km/h) |
| 95 mph (152.89 km/h) | 83.3 mph (134.06 km/h) |
| 100 mph (160.93 km/h) | 87.68 mph (141.11 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1517 | 1762 | 1898 | 1982 | 2072 | 2137 | 2208 | 2292 | 2408 | 2524 | 2653 | 2757 | 2944 | 3150 | 3312 | 3415 | 3473 | 3686 | 3983 | 4629 |
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