Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 235/55-20 | 265/70-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.18 (766.5) | 31.61 (802.8) | 1.43 (36.3) 4.7% |
| Width inches (mm) | 9.25 (235) | 10.43 (265) | 1.18 (30) 12.8% |
| Circum. inches (mm) | 94.8 (2408.03) | 99.29 (2522.07) | 4.49 (114.04) 4.7% |
| Sidewall Height inches (mm) | 5.09 (129.25) | 7.3 (185.5) | 2.21 (56.25) 43.5% |
| Revolutions per mile (km) | 668.32 (415.28) | 638.1 (396.5) | -30.22 (-18.78) -4.5% |
265/70-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.95 mph (33.71 km/h) |
| 25 mph (40.23 km/h) | 26.18 mph (42.14 km/h) |
| 30 mph (48.28 km/h) | 31.42 mph (50.57 km/h) |
| 35 mph (56.33 km/h) | 36.66 mph (58.99 km/h) |
| 40 mph (64.37 km/h) | 41.89 mph (67.42 km/h) |
| 45 mph (72.42 km/h) | 47.13 mph (75.85 km/h) |
| 50 mph (80.47 km/h) | 52.37 mph (84.28 km/h) |
| 55 mph (88.51 km/h) | 57.6 mph (92.71 km/h) |
| 60 mph (96.56 km/h) | 62.84 mph (101.13 km/h) |
| 65 mph (104.61 km/h) | 68.08 mph (109.56 km/h) |
| 70 mph (112.65 km/h) | 73.32 mph (117.99 km/h) |
| 75 mph (120.7 km/h) | 78.55 mph (126.42 km/h) |
| 80 mph (128.75 km/h) | 83.79 mph (134.85 km/h) |
| 85 mph (136.79 km/h) | 89.03 mph (143.27 km/h) |
| 90 mph (144.84 km/h) | 94.26 mph (151.7 km/h) |
| 95 mph (152.89 km/h) | 99.5 mph (160.13 km/h) |
| 100 mph (160.93 km/h) | 104.74 mph (168.56 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1624 | 1886 | 2032 | 2121 | 2218 | 2287 | 2363 | 2453 | 2577 | 2702 | 2840 | 2951 | 3151 | 3372 | 3545 | 3655 | 3718 | 3946 | 4263 | 4954 |
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