The 245/45R17 is a common tire size for midsize sedans such as Toyota Camry, Honda Accord, and Hyundai Sonata.
With a 110.3 mm sidewall (45% aspect ratio), this tire offers a balanced blend of ride comfort and handling precision — versatile for both city driving and spirited cornering.
Compared to the baseline 225/50R17, this tire's overall diameter differs by -0.7% — a speedometer calibrated for 225/50R17 would read 100.7 km/h at an actual 100 km/h.
OE on the Mercedes-Benz E-Class (W211) sport-package trims and various RWD luxury-sedan 17" packages. Load index 95W or 99Y reinforced. Wide footprint demands 8.0-9.0" wheel widths — narrower rims pinch the bead area.
Mainstream sedan sizes balance compound longevity against light all-season handling. When replacing, match the OE speed rating (H or V on most trims) — installing a lower rating voids many manufacturer load-test certifications and is illegal on autobahn-rated vehicles. Wheel-well clearance is rarely a concern at this rim diameter; speedometer drift across factory alternatives stays well inside the ±3% legal window.
| Tire Code | 245/45R17 |
| Section Width | 245 mm |
| Aspect Ratio | 45% |
| Rim Diameter | 17" |
| Sidewall Height | 110.3 mm |
| Overall Diameter | 652.3 mm / 25.68" |
| Circumference | 2049.3 mm / 80.68" |
| Revolutions per km | 488.0 |
| Revolutions per mile | 785.3 |
| Tire Code | OD (mm) | Δ mm | Δ % | Speedo at 100 km/h |
|---|---|---|---|---|
| 225/45R17 | 634.3 | -18.0 | -2.8% | 102.8 |
| 235/45R17 | 643.3 | -9.0 | -1.4% | 101.4 |
| 245/45R17 (current) | 652.3 | — | — | 100.0 |
| 245/50R17 | 676.8 | +24.5 | +3.8% | 96.4 |
| 245/45R18 | 677.7 | +25.4 | +3.9% | 96.3 |
| 245/45R19 | 703.1 | +50.8 | +7.8% | 92.8 |
| 245/65R17 | 750.3 | +98.0 | +15.0% | 86.9 |