Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 245/55-17 | 245/45-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.61 (701.3) | 25.68 (652.3) | -1.93 (-49) -7% |
| Width inches (mm) | 9.65 (245) | 9.65 (245) | 0 (0) 0% |
| Circum. inches (mm) | 86.74 (2203.2) | 80.68 (2049.26) | -6.06 (-153.94) -7% |
| Sidewall Height inches (mm) | 5.31 (134.75) | 4.34 (110.25) | -0.96 (-24.5) -18.2% |
| Revolutions per mile (km) | 730.46 (453.88) | 785.33 (487.98) | 54.87 (34.1) 7.5% |
245/45-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.6 mph (29.94 km/h) |
| 25 mph (40.23 km/h) | 23.25 mph (37.42 km/h) |
| 30 mph (48.28 km/h) | 27.9 mph (44.91 km/h) |
| 35 mph (56.33 km/h) | 32.55 mph (52.39 km/h) |
| 40 mph (64.37 km/h) | 37.21 mph (59.88 km/h) |
| 45 mph (72.42 km/h) | 41.86 mph (67.36 km/h) |
| 50 mph (80.47 km/h) | 46.51 mph (74.85 km/h) |
| 55 mph (88.51 km/h) | 51.16 mph (82.33 km/h) |
| 60 mph (96.56 km/h) | 55.81 mph (89.81 km/h) |
| 65 mph (104.61 km/h) | 60.46 mph (97.3 km/h) |
| 70 mph (112.65 km/h) | 65.11 mph (104.78 km/h) |
| 75 mph (120.7 km/h) | 69.76 mph (112.27 km/h) |
| 80 mph (128.75 km/h) | 74.41 mph (119.75 km/h) |
| 85 mph (136.79 km/h) | 79.06 mph (127.24 km/h) |
| 90 mph (144.84 km/h) | 83.71 mph (134.72 km/h) |
| 95 mph (152.89 km/h) | 88.36 mph (142.21 km/h) |
| 100 mph (160.93 km/h) | 93.01 mph (149.69 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1999 | 2322 | 2500 | 2611 | 2730 | 2815 | 2908 | 3019 | 3172 | 3325 | 3495 | 3631 | 3878 | 4150 | 4363 | 4499 | 4575 | 4856 | 5247 | 6098 |
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