Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 31/10.5-15 | 235/85-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.98 (786.84) | 31.73 (805.9) | 0.75 (19.06) 2.4% |
| Width inches (mm) | 10.51 (267) | 9.25 (235) | -1.26 (-32) -12% |
| Circum. inches (mm) | 97.32 (2471.93) | 99.68 (2531.81) | 2.36 (59.88) 2.4% |
| Sidewall Height inches (mm) | 7.99 (202.92) | 7.86 (199.75) | -0.12 (-3.17) -1.6% |
| Revolutions per mile (km) | 651.05 (404.54) | 635.65 (394.97) | -15.4 (-9.57) -2.4% |
235/85-16 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.48 mph (32.97 km/h) |
| 25 mph (40.23 km/h) | 25.61 mph (41.21 km/h) |
| 30 mph (48.28 km/h) | 30.73 mph (49.45 km/h) |
| 35 mph (56.33 km/h) | 35.85 mph (57.69 km/h) |
| 40 mph (64.37 km/h) | 40.97 mph (65.93 km/h) |
| 45 mph (72.42 km/h) | 46.09 mph (74.17 km/h) |
| 50 mph (80.47 km/h) | 51.21 mph (82.42 km/h) |
| 55 mph (88.51 km/h) | 56.33 mph (90.66 km/h) |
| 60 mph (96.56 km/h) | 61.45 mph (98.9 km/h) |
| 65 mph (104.61 km/h) | 66.57 mph (107.14 km/h) |
| 70 mph (112.65 km/h) | 71.7 mph (115.38 km/h) |
| 75 mph (120.7 km/h) | 76.82 mph (123.62 km/h) |
| 80 mph (128.75 km/h) | 81.94 mph (131.87 km/h) |
| 85 mph (136.79 km/h) | 87.06 mph (140.11 km/h) |
| 90 mph (144.84 km/h) | 92.18 mph (148.35 km/h) |
| 95 mph (152.89 km/h) | 97.3 mph (156.59 km/h) |
| 100 mph (160.93 km/h) | 102.42 mph (164.83 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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