Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 235/70-16 | 235/85-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 28.95 (735.4) | 31.73 (805.9) | 2.78 (70.5) 9.6% |
| Width inches (mm) | 9.25 (235) | 9.25 (235) | 0 (0) 0% |
| Circum. inches (mm) | 90.96 (2310.33) | 99.68 (2531.81) | 8.72 (221.48) 9.6% |
| Sidewall Height inches (mm) | 6.48 (164.5) | 7.86 (199.75) | 1.39 (35.25) 21.4% |
| Revolutions per mile (km) | 696.59 (432.84) | 635.65 (394.97) | -60.94 (-37.86) -8.7% |
235/85-16 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.92 mph (35.27 km/h) |
| 25 mph (40.23 km/h) | 27.4 mph (44.09 km/h) |
| 30 mph (48.28 km/h) | 32.88 mph (52.91 km/h) |
| 35 mph (56.33 km/h) | 38.36 mph (61.73 km/h) |
| 40 mph (64.37 km/h) | 43.83 mph (70.55 km/h) |
| 45 mph (72.42 km/h) | 49.31 mph (79.36 km/h) |
| 50 mph (80.47 km/h) | 54.79 mph (88.18 km/h) |
| 55 mph (88.51 km/h) | 60.27 mph (97 km/h) |
| 60 mph (96.56 km/h) | 65.75 mph (105.82 km/h) |
| 65 mph (104.61 km/h) | 71.23 mph (114.64 km/h) |
| 70 mph (112.65 km/h) | 76.71 mph (123.45 km/h) |
| 75 mph (120.7 km/h) | 82.19 mph (132.27 km/h) |
| 80 mph (128.75 km/h) | 87.67 mph (141.09 km/h) |
| 85 mph (136.79 km/h) | 93.15 mph (149.91 km/h) |
| 90 mph (144.84 km/h) | 98.63 mph (158.73 km/h) |
| 95 mph (152.89 km/h) | 104.11 mph (167.54 km/h) |
| 100 mph (160.93 km/h) | 109.59 mph (176.36 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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