Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 285/65-20 | 265/70-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 34.59 (878.5) | 31.61 (802.8) | -2.98 (-75.7) -8.6% |
| Width inches (mm) | 11.22 (285) | 10.43 (265) | -0.79 (-20) -7% |
| Circum. inches (mm) | 108.66 (2759.89) | 99.29 (2522.07) | -9.36 (-237.82) -8.6% |
| Sidewall Height inches (mm) | 7.29 (185.25) | 7.3 (185.5) | 0.01 (0.25) 0.1% |
| Revolutions per mile (km) | 583.12 (362.33) | 638.1 (396.5) | 54.99 (34.17) 9.4% |
265/70-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.28 mph (29.41 km/h) |
| 25 mph (40.23 km/h) | 22.85 mph (36.77 km/h) |
| 30 mph (48.28 km/h) | 27.41 mph (44.12 km/h) |
| 35 mph (56.33 km/h) | 31.98 mph (51.47 km/h) |
| 40 mph (64.37 km/h) | 36.55 mph (58.83 km/h) |
| 45 mph (72.42 km/h) | 41.12 mph (66.18 km/h) |
| 50 mph (80.47 km/h) | 45.69 mph (73.53 km/h) |
| 55 mph (88.51 km/h) | 50.26 mph (80.89 km/h) |
| 60 mph (96.56 km/h) | 54.83 mph (88.24 km/h) |
| 65 mph (104.61 km/h) | 59.4 mph (95.59 km/h) |
| 70 mph (112.65 km/h) | 63.97 mph (102.95 km/h) |
| 75 mph (120.7 km/h) | 68.54 mph (110.3 km/h) |
| 80 mph (128.75 km/h) | 73.11 mph (117.65 km/h) |
| 85 mph (136.79 km/h) | 77.68 mph (125.01 km/h) |
| 90 mph (144.84 km/h) | 82.24 mph (132.36 km/h) |
| 95 mph (152.89 km/h) | 86.81 mph (139.71 km/h) |
| 100 mph (160.93 km/h) | 91.38 mph (147.07 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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