Choosing the right bathroom mirror comes down to size and placement that work...

https://echo-wiki.win/index.php/Should_I_Do_One_Big_Mirror_or_Two_Mirrors_Over_a_Double_Vanity%3F

Choosing the right bathroom mirror comes down to size and placement that work with your space. Aim for a mirror about 70% to 80% the width of your vanity for balanced lighting with wall sconces placed 60 to 66 inches from the floor