* Checking your owner's manual: This is the most reliable source.
* Looking at the existing wiper blades: The size is usually printed on the blade itself.
* Checking a reputable online parts retailer: Enter your vehicle's year, make, and model into a site like AutoZone, Advance Auto Parts, or PartsGeek to see their recommendations.
Don't rely solely on generalized information. The specifics can vary slightly depending on options or even minor model variations.