Choosing the right size light fixture is the difference between "that looks perfect" and "something feels off." Here's a quick reference guide with sizing formulas for every room.

The Universal Formula

Room length (ft) + Room width (ft) = Fixture diameter (inches)
Example: 12×14 foot room = 26-inch fixture

Room-by-Room Guide

Kitchen Island

8-12 inch pendants, one per 2 feet of island. Hang 30-36 inches above counter.

Dining Room

Fixture should be 6-12 inches narrower than the table. Hang 30-36 inches above table surface.

Living Room

Use the universal formula. For a 16×20 room, a 36-inch chandelier is ideal.

Bedroom

12-20 inch ceiling fixture, centered. For 8-foot ceilings, use flush mount.

Bathroom

8-12 inch fixture for small baths. Sconces flanking mirror: 4-5 inches wide each.

Hallway

8-10 inch flush mounts, one every 6-8 feet.

Entryway/Foyer

Standard ceiling: 18-24 inch fixture. Two-story foyer: 30-36 inch chandelier.

When in Doubt

Go one size larger rather than smaller. An undersized fixture disappears in a room — a slightly oversized one becomes a statement piece.