Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 175/75-16 | 245/90-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.33 (668.9) | 37.36 (949) | 11.03 (280.1) 41.9% |
| Width inches (mm) | 6.89 (175) | 9.65 (245) | 2.76 (70) 40% |
| Circum. inches (mm) | 82.73 (2101.41) | 117.38 (2981.37) | 34.64 (879.96) 41.9% |
| Sidewall Height inches (mm) | 5.17 (131.25) | 8.68 (220.5) | 3.51 (89.25) 68% |
| Revolutions per mile (km) | 765.84 (475.87) | 539.8 (335.42) | -226.04 (-140.45) -29.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 28.37 mph (45.67 km/h) |
| 25 mph (40.23 km/h) | 35.47 mph (57.08 km/h) |
| 30 mph (48.28 km/h) | 42.56 mph (68.5 km/h) |
| 35 mph (56.33 km/h) | 49.66 mph (79.91 km/h) |
| 40 mph (64.37 km/h) | 56.75 mph (91.33 km/h) |
| 45 mph (72.42 km/h) | 63.84 mph (102.75 km/h) |
| 50 mph (80.47 km/h) | 70.94 mph (114.16 km/h) |
| 55 mph (88.51 km/h) | 78.03 mph (125.58 km/h) |
| 60 mph (96.56 km/h) | 85.12 mph (137 km/h) |
| 65 mph (104.61 km/h) | 92.22 mph (148.41 km/h) |
| 70 mph (112.65 km/h) | 99.31 mph (159.83 km/h) |
| 75 mph (120.7 km/h) | 106.41 mph (171.24 km/h) |
| 80 mph (128.75 km/h) | 113.5 mph (182.66 km/h) |
| 85 mph (136.79 km/h) | 120.59 mph (194.08 km/h) |
| 90 mph (144.84 km/h) | 127.69 mph (205.49 km/h) |
| 95 mph (152.89 km/h) | 134.78 mph (216.91 km/h) |
| 100 mph (160.93 km/h) | 141.87 mph (228.33 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1374 | 1596 | 1719 | 1795 | 1876 | 1935 | 1999 | 2075 | 2180 | 2286 | 2402 | 2496 | 2666 | 2853 | 2999 | 3092 | 3145 | 3338 | 3607 | 4191 |
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