Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 315/45-16 | 235/85-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.16 (689.9) | 31.73 (805.9) | 4.57 (116) 16.8% |
| Width inches (mm) | 12.4 (315) | 9.25 (235) | -3.15 (-80) -25.4% |
| Circum. inches (mm) | 85.33 (2167.38) | 99.68 (2531.81) | 14.35 (364.42) 16.8% |
| Sidewall Height inches (mm) | 5.58 (141.75) | 7.86 (199.75) | 2.28 (58) 40.9% |
| Revolutions per mile (km) | 742.53 (461.38) | 635.65 (394.97) | -106.88 (-66.41) -14.4% |
235/85-16 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 23.36 mph (37.6 km/h) |
| 25 mph (40.23 km/h) | 29.2 mph (47 km/h) |
| 30 mph (48.28 km/h) | 35.04 mph (56.4 km/h) |
| 35 mph (56.33 km/h) | 40.88 mph (65.8 km/h) |
| 40 mph (64.37 km/h) | 46.73 mph (75.2 km/h) |
| 45 mph (72.42 km/h) | 52.57 mph (84.6 km/h) |
| 50 mph (80.47 km/h) | 58.41 mph (94 km/h) |
| 55 mph (88.51 km/h) | 64.25 mph (103.4 km/h) |
| 60 mph (96.56 km/h) | 70.09 mph (112.8 km/h) |
| 65 mph (104.61 km/h) | 75.93 mph (122.2 km/h) |
| 70 mph (112.65 km/h) | 81.77 mph (131.6 km/h) |
| 75 mph (120.7 km/h) | 87.61 mph (141 km/h) |
| 80 mph (128.75 km/h) | 93.45 mph (150.4 km/h) |
| 85 mph (136.79 km/h) | 99.29 mph (159.8 km/h) |
| 90 mph (144.84 km/h) | 105.13 mph (169.19 km/h) |
| 95 mph (152.89 km/h) | 110.97 mph (178.59 km/h) |
| 100 mph (160.93 km/h) | 116.81 mph (187.99 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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