Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 215/85-16 | 235/80-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.39 (771.9) | 31.8 (807.8) | 1.41 (35.9) 4.7% |
| Width inches (mm) | 8.46 (215) | 9.25 (235) | 0.79 (20) 9.3% |
| Circum. inches (mm) | 95.47 (2425) | 99.91 (2537.78) | 4.44 (112.78) 4.7% |
| Sidewall Height inches (mm) | 7.19 (182.75) | 7.4 (188) | 0.21 (5.25) 2.9% |
| Revolutions per mile (km) | 663.65 (412.37) | 634.15 (394.04) | -29.49 (-18.33) -4.4% |
235/80-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.93 mph (33.68 km/h) |
| 25 mph (40.23 km/h) | 26.16 mph (42.1 km/h) |
| 30 mph (48.28 km/h) | 31.4 mph (50.53 km/h) |
| 35 mph (56.33 km/h) | 36.63 mph (58.95 km/h) |
| 40 mph (64.37 km/h) | 41.86 mph (67.37 km/h) |
| 45 mph (72.42 km/h) | 47.09 mph (75.79 km/h) |
| 50 mph (80.47 km/h) | 52.33 mph (84.21 km/h) |
| 55 mph (88.51 km/h) | 57.56 mph (92.63 km/h) |
| 60 mph (96.56 km/h) | 62.79 mph (101.05 km/h) |
| 65 mph (104.61 km/h) | 68.02 mph (109.47 km/h) |
| 70 mph (112.65 km/h) | 73.26 mph (117.89 km/h) |
| 75 mph (120.7 km/h) | 78.49 mph (126.31 km/h) |
| 80 mph (128.75 km/h) | 83.72 mph (134.74 km/h) |
| 85 mph (136.79 km/h) | 88.95 mph (143.16 km/h) |
| 90 mph (144.84 km/h) | 94.19 mph (151.58 km/h) |
| 95 mph (152.89 km/h) | 99.42 mph (160 km/h) |
| 100 mph (160.93 km/h) | 104.65 mph (168.42 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1614 | 1875 | 2019 | 2108 | 2204 | 2273 | 2349 | 2438 | 2561 | 2685 | 2822 | 2932 | 3131 | 3351 | 3523 | 3633 | 3695 | 3921 | 4237 | 4924 |
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