* Check your owner's manual: This is the most reliable source. The manual will specify the correct wiper sizes for your specific vehicle.
* Look at your existing wipers: The size is usually printed on the wiper arm itself.
* Use an online parts lookup tool: Many websites (like AutoZone, Advance Auto Parts, etc.) allow you to enter your vehicle's year, make, and model to find the correct wiper sizes.
Don't rely solely on general information online, as different trim levels and even slight variations can change the wiper blade size requirements. Always double-check using one of the methods above.