Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 245/65-18 | 245/65-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.54 (775.7) | 29.54 (750.3) | -1 (-25.4) -3.3% |
| Width inches (mm) | 9.65 (245) | 9.65 (245) | 0 (0) 0% |
| Circum. inches (mm) | 95.94 (2436.93) | 92.8 (2357.14) | -3.14 (-79.8) -3.3% |
| Sidewall Height inches (mm) | 6.27 (159.25) | 6.27 (159.25) | 0 (0) 0% |
| Revolutions per mile (km) | 660.4 (410.35) | 682.75 (424.24) | 22.36 (13.89) 3.4% |
245/65-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.35 mph (31.13 km/h) |
| 25 mph (40.23 km/h) | 24.18 mph (38.92 km/h) |
| 30 mph (48.28 km/h) | 29.02 mph (46.7 km/h) |
| 35 mph (56.33 km/h) | 33.85 mph (54.48 km/h) |
| 40 mph (64.37 km/h) | 38.69 mph (62.27 km/h) |
| 45 mph (72.42 km/h) | 43.53 mph (70.05 km/h) |
| 50 mph (80.47 km/h) | 48.36 mph (77.83 km/h) |
| 55 mph (88.51 km/h) | 53.2 mph (85.62 km/h) |
| 60 mph (96.56 km/h) | 58.04 mph (93.4 km/h) |
| 65 mph (104.61 km/h) | 62.87 mph (101.18 km/h) |
| 70 mph (112.65 km/h) | 67.71 mph (108.97 km/h) |
| 75 mph (120.7 km/h) | 72.54 mph (116.75 km/h) |
| 80 mph (128.75 km/h) | 77.38 mph (124.53 km/h) |
| 85 mph (136.79 km/h) | 82.22 mph (132.32 km/h) |
| 90 mph (144.84 km/h) | 87.05 mph (140.1 km/h) |
| 95 mph (152.89 km/h) | 91.89 mph (147.88 km/h) |
| 100 mph (160.93 km/h) | 96.73 mph (155.66 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1737 | 2018 | 2174 | 2270 | 2373 | 2447 | 2529 | 2625 | 2758 | 2891 | 3039 | 3157 | 3371 | 3608 | 3793 | 3911 | 3978 | 4222 | 4562 | 5301 |
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