Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 315/75-16 | 255/85-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 34.6 (878.9) | 33.07 (839.9) | -1.54 (-39) -4.4% |
| Width inches (mm) | 12.4 (315) | 10.04 (255) | -2.36 (-60) -19% |
| Circum. inches (mm) | 108.71 (2761.15) | 103.88 (2638.62) | -4.82 (-122.52) -4.4% |
| Sidewall Height inches (mm) | 9.3 (236.25) | 8.53 (216.75) | -0.77 (-19.5) -8.3% |
| Revolutions per mile (km) | 582.85 (362.17) | 609.92 (378.98) | 27.06 (16.82) 4.6% |
255/85-16 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.11 mph (30.76 km/h) |
| 25 mph (40.23 km/h) | 23.89 mph (38.45 km/h) |
| 30 mph (48.28 km/h) | 28.67 mph (46.14 km/h) |
| 35 mph (56.33 km/h) | 33.45 mph (53.83 km/h) |
| 40 mph (64.37 km/h) | 38.23 mph (61.52 km/h) |
| 45 mph (72.42 km/h) | 43 mph (69.21 km/h) |
| 50 mph (80.47 km/h) | 47.78 mph (76.9 km/h) |
| 55 mph (88.51 km/h) | 52.56 mph (84.59 km/h) |
| 60 mph (96.56 km/h) | 57.34 mph (92.28 km/h) |
| 65 mph (104.61 km/h) | 62.12 mph (99.97 km/h) |
| 70 mph (112.65 km/h) | 66.89 mph (107.66 km/h) |
| 75 mph (120.7 km/h) | 71.67 mph (115.35 km/h) |
| 80 mph (128.75 km/h) | 76.45 mph (123.03 km/h) |
| 85 mph (136.79 km/h) | 81.23 mph (130.72 km/h) |
| 90 mph (144.84 km/h) | 86.01 mph (138.41 km/h) |
| 95 mph (152.89 km/h) | 90.78 mph (146.1 km/h) |
| 100 mph (160.93 km/h) | 95.56 mph (153.79 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1552 | 1803 | 1942 | 2028 | 2120 | 2186 | 2259 | 2345 | 2464 | 2582 | 2715 | 2820 | 3012 | 3223 | 3388 | 3494 | 3553 | 3771 | 4075 | 4736 |
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