Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 32/10.5-17 | 255/85-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 31.93 (810.94) | 33.07 (839.9) | 1.14 (28.96) 3.6% |
| Width inches (mm) | 10.51 (267) | 10.04 (255) | -0.47 (-12) -4.5% |
| Circum. inches (mm) | 100.3 (2547.64) | 103.88 (2638.62) | 3.58 (90.98) 3.6% |
| Sidewall Height inches (mm) | 7.46 (189.57) | 8.53 (216.75) | 1.07 (27.18) 14.3% |
| Revolutions per mile (km) | 631.7 (392.52) | 609.92 (378.98) | -21.78 (-13.53) -3.4% |
255/85-16 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.71 mph (33.34 km/h) |
| 25 mph (40.23 km/h) | 25.89 mph (41.67 km/h) |
| 30 mph (48.28 km/h) | 31.07 mph (50 km/h) |
| 35 mph (56.33 km/h) | 36.25 mph (58.34 km/h) |
| 40 mph (64.37 km/h) | 41.43 mph (66.67 km/h) |
| 45 mph (72.42 km/h) | 46.61 mph (75.01 km/h) |
| 50 mph (80.47 km/h) | 51.79 mph (83.34 km/h) |
| 55 mph (88.51 km/h) | 56.96 mph (91.68 km/h) |
| 60 mph (96.56 km/h) | 62.14 mph (100.01 km/h) |
| 65 mph (104.61 km/h) | 67.32 mph (108.34 km/h) |
| 70 mph (112.65 km/h) | 72.5 mph (116.68 km/h) |
| 75 mph (120.7 km/h) | 77.68 mph (125.01 km/h) |
| 80 mph (128.75 km/h) | 82.86 mph (133.35 km/h) |
| 85 mph (136.79 km/h) | 88.04 mph (141.68 km/h) |
| 90 mph (144.84 km/h) | 93.21 mph (150.01 km/h) |
| 95 mph (152.89 km/h) | 98.39 mph (158.35 km/h) |
| 100 mph (160.93 km/h) | 103.57 mph (166.68 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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