A mirror that’s too small looks like an afterthought; too big and it eats the wall. The fix is proportion — the mirror should relate to the furniture beneath it, not the wall around it. Our free mirror size calculator sizes the mirror to your console, mantel or entryway, with the right hanging height. Follow the mirror size calculator once and you’ll nail the mirror proportions every time.

Open the Mirror Size Calculator →

What the Mirror Size Calculator Tells You (Specifications)

• Inputs: furniture width in inches, and placement (above console, above mantel, or entryway full-length).
• Ideal mirror width — one-half to two-thirds of the furniture width, never wider than the furniture itself.
• Shape guidance — round vs rectangular based on the furniture beneath.
• Hanging height — 4–6″ above the furniture; entryway full-length guidance included.

How to Use It — Step by Step

1. Measure your furniture width in inches (console, sideboard or mantel).
2. Choose the placement.
3. Hit calculate and note the width range and hanging note.
4. Tape the outline on the wall with painter’s tape and live with it a day.
5. Check what it reflects — a mirror should catch art, light or greenery, never clutter.

Designer Tips for Mirrors

• Never wider than the furniture. This one rule fixes 90% of bad mirror hangs.
• Round mirrors soften angular consoles; tall rectangles add height to low furniture.
• Lean large mirrors instead of hanging — relaxed, gallery-like, and no holes.
• Entryway mirrors double light — place opposite or beside a window, not facing a blank wall.

FAQs

How big should a mirror be over a console?
One-half to two-thirds the console’s width — a 60″ console wants a 30–40″ mirror.

How high to hang a mirror above a console?
4–6″ above the console top, centered on the furniture.

Should a mirror be wider than the mantel?
Never — keep it at two-thirds the mantel width or less.

Reflect something beautiful — open the free mirror size calculator and hang it right.