Bathroom Mirror Size Calculator

Bathroom Mirror Size Calculator — Find Your Perfect Fit

The right bathroom mirror can transform your space, making it feel larger, brighter, and more cohesive. Our professional-grade calculator helps you determine the ideal mirror dimensions based on your vanity size, ceiling height, and personal preferences.

How to Use This Calculator

• Measure your vanity width: Standard vanities range from 24 to 72 inches wide
• Measure vanity height: Standard bathroom vanities are 34-36 inches tall
• Measure ceiling height: Most bathrooms have 8-9 foot ceilings (96-108 inches)
• Select mirror type: Choose single mirror, double mirror, or full-width based on your setup
• Consider light fixtures: Account for space above the mirror if you have wall-mounted lighting

Professional Mirror Sizing Rules

• Width: The mirror should be 2-4 inches narrower than the vanity width
• Height: Mount the mirror 6-10 inches above the vanity countertop
• Top clearance: Leave 6-12 inches between mirror top and ceiling (or light fixture)
• Double vanity spacing: For two mirrors, leave 3-5 inches between them and 2-3 inches from edges
• Round mirrors: Diameter should be 2-4 inches less than vanity width

Mirror Size Guide by Vanity Width

• 24-inch vanity: Mirror width 20-22 inches | Mirror height 28-32 inches
• 30-inch vanity: Mirror width 26-28 inches | Mirror height 30-34 inches
• 36-inch vanity: Mirror width 32-34 inches | Mirror height 32-36 inches
• 48-inch vanity: Mirror width 44-46 inches | Mirror height 34-38 inches
• 60-inch double vanity: Two mirrors: 26-28 inches each | 3-5 inches apart
• 72-inch double vanity: Two mirrors: 32-34 inches each | 4-6 inches apart

Popular Mirror Shapes and Their Benefits

• Rectangular: Classic, maximizes wall space, works with any vanity style
• Round/Oval: Softens angular spaces, great for smaller bathrooms
• Arched/Curved Top: Adds architectural interest, complements traditional decor
• Full-width: Creates a seamless look, makes small bathrooms feel larger

Placement Tips for Different Mirror Types

• Single mirror: Center over the vanity. Height should allow most users to see their full face (top of mirror 70-75 inches from floor)
• Double mirrors: Each mirror centered over its respective sink. Keep 3-5 inches between mirrors for balance
• Full-width mirror: Mount from countertop to 6 inches below ceiling for dramatic effect

Frequently Asked Questions

• What size mirror for a 36-inch vanity? — A 32-34 inch wide mirror with 32-36 inch height is ideal.
• What size round mirror for a 30-inch vanity? — A 26-28 inch diameter round mirror works best.
• How high should a bathroom mirror be mounted? — Mount so the mirror center is at eye level (about 60-65 inches from floor).
• Should a bathroom mirror be wider than the vanity? — No, the mirror should be 2-4 inches narrower than the vanity for proper proportion.
• What's the standard bathroom mirror height? — Standard heights range from 28 to 40 inches, depending on vanity and ceiling height.