What Size Mirror Do I Need? A Room-by-Room and Shape-by-Shape Guide
There's one rule behind almost every mirror sizing question: size it at roughly two-thirds the width of whatever it sits above, a console, a vanity, a mantel. This guide applies that rule room by room (entrance halls, living rooms, bathrooms, full-length mirrors) and shape by shape (round, arch, pill, organic, backlit), plus the wall height every mirror should hang at regardless of size.