Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 185/85-16 | 235/85-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 28.38 (720.9) | 31.73 (805.9) | 3.35 (85) 11.8% |
| Width inches (mm) | 7.28 (185) | 9.25 (235) | 1.97 (50) 27% |
| Circum. inches (mm) | 89.16 (2264.77) | 99.68 (2531.81) | 10.51 (267.04) 11.8% |
| Sidewall Height inches (mm) | 6.19 (157.25) | 7.86 (199.75) | 1.67 (42.5) 27% |
| Revolutions per mile (km) | 710.6 (441.54) | 635.65 (394.97) | -74.95 (-46.57) -10.5% |
235/85-16 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.36 mph (35.98 km/h) |
| 25 mph (40.23 km/h) | 27.95 mph (44.98 km/h) |
| 30 mph (48.28 km/h) | 33.54 mph (53.97 km/h) |
| 35 mph (56.33 km/h) | 39.13 mph (62.97 km/h) |
| 40 mph (64.37 km/h) | 44.72 mph (71.96 km/h) |
| 45 mph (72.42 km/h) | 50.31 mph (80.96 km/h) |
| 50 mph (80.47 km/h) | 55.9 mph (89.96 km/h) |
| 55 mph (88.51 km/h) | 61.48 mph (98.95 km/h) |
| 60 mph (96.56 km/h) | 67.07 mph (107.95 km/h) |
| 65 mph (104.61 km/h) | 72.66 mph (116.94 km/h) |
| 70 mph (112.65 km/h) | 78.25 mph (125.94 km/h) |
| 75 mph (120.7 km/h) | 83.84 mph (134.93 km/h) |
| 80 mph (128.75 km/h) | 89.43 mph (143.93 km/h) |
| 85 mph (136.79 km/h) | 95.02 mph (152.92 km/h) |
| 90 mph (144.84 km/h) | 100.61 mph (161.92 km/h) |
| 95 mph (152.89 km/h) | 106.2 mph (170.91 km/h) |
| 100 mph (160.93 km/h) | 111.79 mph (179.91 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1618 | 1879 | 2024 | 2113 | 2210 | 2278 | 2354 | 2444 | 2568 | 2691 | 2829 | 2939 | 3139 | 3359 | 3531 | 3641 | 3703 | 3930 | 4247 | 4935 |
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