Family Life How much does a Mazda windshield cost? What size is a Mazda 3 windshield? The windshield on a 2014 Mazda3 iS58" l X27. 5" w. This is the standard size for most windshields, so if You need to take one off another car it should not be hard to find one. Related Posts:Is it worth buying a Mazda3?What cars has Mazda made?What Mazda models are AWD?When did Mazda leave Ford?