Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 235/85-16 | 255/85-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 31.73 (805.9) | 33.07 (839.9) | 1.34 (34) 4.2% |
| Width inches (mm) | 9.25 (235) | 10.04 (255) | 0.79 (20) 8.5% |
| Circum. inches (mm) | 99.68 (2531.81) | 103.88 (2638.62) | 4.21 (106.81) 4.2% |
| Sidewall Height inches (mm) | 7.86 (199.75) | 8.53 (216.75) | 0.67 (17) 8.5% |
| Revolutions per mile (km) | 635.65 (394.97) | 609.92 (378.98) | -25.73 (-15.99) -4% |
255/85-16 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.84 mph (33.54 km/h) |
| 25 mph (40.23 km/h) | 26.05 mph (41.93 km/h) |
| 30 mph (48.28 km/h) | 31.27 mph (50.32 km/h) |
| 35 mph (56.33 km/h) | 36.48 mph (58.7 km/h) |
| 40 mph (64.37 km/h) | 41.69 mph (67.09 km/h) |
| 45 mph (72.42 km/h) | 46.9 mph (75.48 km/h) |
| 50 mph (80.47 km/h) | 52.11 mph (83.86 km/h) |
| 55 mph (88.51 km/h) | 57.32 mph (92.25 km/h) |
| 60 mph (96.56 km/h) | 62.53 mph (100.63 km/h) |
| 65 mph (104.61 km/h) | 67.74 mph (109.02 km/h) |
| 70 mph (112.65 km/h) | 72.95 mph (117.41 km/h) |
| 75 mph (120.7 km/h) | 78.16 mph (125.79 km/h) |
| 80 mph (128.75 km/h) | 83.38 mph (134.18 km/h) |
| 85 mph (136.79 km/h) | 88.59 mph (142.57 km/h) |
| 90 mph (144.84 km/h) | 93.8 mph (150.95 km/h) |
| 95 mph (152.89 km/h) | 99.01 mph (159.34 km/h) |
| 100 mph (160.93 km/h) | 104.22 mph (167.72 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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