Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 255/55-17 | 245/55-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 28.04 (712.3) | 27.61 (701.3) | -0.43 (-11) -1.5% |
| Width inches (mm) | 10.04 (255) | 9.65 (245) | -0.39 (-10) -3.9% |
| Circum. inches (mm) | 88.1 (2237.76) | 86.74 (2203.2) | -1.36 (-34.56) -1.5% |
| Sidewall Height inches (mm) | 5.52 (140.25) | 5.31 (134.75) | -0.22 (-5.5) -3.9% |
| Revolutions per mile (km) | 719.18 (446.88) | 730.46 (453.88) | 11.28 (7.01) 1.6% |
245/55-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.69 mph (31.69 km/h) |
| 25 mph (40.23 km/h) | 24.61 mph (39.61 km/h) |
| 30 mph (48.28 km/h) | 29.54 mph (47.53 km/h) |
| 35 mph (56.33 km/h) | 34.46 mph (55.46 km/h) |
| 40 mph (64.37 km/h) | 39.38 mph (63.38 km/h) |
| 45 mph (72.42 km/h) | 44.31 mph (71.3 km/h) |
| 50 mph (80.47 km/h) | 49.23 mph (79.22 km/h) |
| 55 mph (88.51 km/h) | 54.15 mph (87.15 km/h) |
| 60 mph (96.56 km/h) | 59.07 mph (95.07 km/h) |
| 65 mph (104.61 km/h) | 64 mph (102.99 km/h) |
| 70 mph (112.65 km/h) | 68.92 mph (110.91 km/h) |
| 75 mph (120.7 km/h) | 73.84 mph (118.84 km/h) |
| 80 mph (128.75 km/h) | 78.76 mph (126.76 km/h) |
| 85 mph (136.79 km/h) | 83.69 mph (134.68 km/h) |
| 90 mph (144.84 km/h) | 88.61 mph (142.6 km/h) |
| 95 mph (152.89 km/h) | 93.53 mph (150.53 km/h) |
| 100 mph (160.93 km/h) | 98.46 mph (158.45 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1859 | 2159 | 2326 | 2428 | 2539 | 2618 | 2705 | 2808 | 2950 | 3093 | 3251 | 3378 | 3607 | 3860 | 4058 | 4184 | 4256 | 4517 | 4881 | 5672 |
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