Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 285/70-17 | 245/75-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 32.71 (830.8) | 31.47 (799.3) | -1.24 (-31.5) -3.8% |
| Width inches (mm) | 11.22 (285) | 9.65 (245) | -1.57 (-40) -14% |
| Circum. inches (mm) | 102.76 (2610.04) | 98.86 (2511.08) | -3.9 (-98.96) -3.8% |
| Sidewall Height inches (mm) | 7.85 (199.5) | 7.23 (183.75) | -0.62 (-15.75) -7.9% |
| Revolutions per mile (km) | 616.6 (383.14) | 640.9 (398.24) | 24.3 (15.1) 3.9% |
245/75-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.24 mph (30.97 km/h) |
| 25 mph (40.23 km/h) | 24.05 mph (38.71 km/h) |
| 30 mph (48.28 km/h) | 28.86 mph (46.45 km/h) |
| 35 mph (56.33 km/h) | 33.67 mph (54.19 km/h) |
| 40 mph (64.37 km/h) | 38.48 mph (61.93 km/h) |
| 45 mph (72.42 km/h) | 43.29 mph (69.67 km/h) |
| 50 mph (80.47 km/h) | 48.1 mph (77.42 km/h) |
| 55 mph (88.51 km/h) | 52.91 mph (85.16 km/h) |
| 60 mph (96.56 km/h) | 57.73 mph (92.9 km/h) |
| 65 mph (104.61 km/h) | 62.54 mph (100.64 km/h) |
| 70 mph (112.65 km/h) | 67.35 mph (108.38 km/h) |
| 75 mph (120.7 km/h) | 72.16 mph (116.12 km/h) |
| 80 mph (128.75 km/h) | 76.97 mph (123.87 km/h) |
| 85 mph (136.79 km/h) | 81.78 mph (131.61 km/h) |
| 90 mph (144.84 km/h) | 86.59 mph (139.35 km/h) |
| 95 mph (152.89 km/h) | 91.4 mph (147.09 km/h) |
| 100 mph (160.93 km/h) | 96.21 mph (154.83 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1631 | 1895 | 2040 | 2131 | 2228 | 2297 | 2374 | 2464 | 2589 | 2714 | 2852 | 2963 | 3165 | 3387 | 3560 | 3671 | 3734 | 3963 | 4282 | 4976 |
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