Bathroom Mirror Size

What Size Mirror for Your Bathroom Vanity?

Choosing the right bathroom mirror size is essential for both functionality and aesthetics. A mirror that is too small can look out of proportion, while one that is too large may feel overwhelming or interfere with lighting and fixtures. Our bathroom mirror size calculator helps you determine the perfect mirror dimensions based on your vanity width, vanity height, and ceiling height.

Whether you are remodeling your bathroom or simply replacing an old mirror, getting the size right makes a significant difference. The general rule is to select a mirror that is 4 to 6 inches narrower than your vanity width and positioned 6 to 10 inches above the vanity top.

How to Use the Bathroom Mirror Size Calculator

Using our calculator is simple. Start by selecting the type of mirror you want: rectangular, circular, or double (for double vanities). Then enter the height and width of your vanity in inches, followed by the ceiling height. The calculator will instantly recommend the ideal mirror dimensions.

• Rectangular Mirror: Width is vanity width minus 4 inches. Height is ceiling height minus (vanity height + 12 inches).
• Circular Mirror: Diameter is vanity width minus 4 inches.
• Double Mirror: Each mirror width is (vanity width minus 8 inches) divided by 2, with a 4-inch gap between mirrors.

Standard Bathroom Mirror Sizing Guidelines

For most bathrooms, the mirror should not be wider than the vanity below it. A good rule of thumb is to keep the mirror 4 inches narrower than the vanity on each side. This creates a balanced look and ensures the mirror fits within the space without overlapping into surrounding wall areas.

The height of the mirror is equally important. Taller mirrors make a bathroom feel more spacious and are better suited for taller individuals. Aim to leave about 6 to 10 inches between the top of the vanity and the bottom of the mirror, and 6 inches between the top of the mirror and the ceiling.

Mirror Size for Double Vanities

Double vanities require special consideration. You can either use one large mirror spanning the full width or two separate mirrors aligned with each sink. For two mirrors, subtract 8 inches from the total vanity width and divide by 2 to get each mirror's width. Mount each mirror 2 inches from the edge of the vanity, leaving a 4-inch gap between them.

Frequently Asked Questions