Free tool

Chandelier size calculator

Enter the room, and the table if the light hangs over one. You get the diameter, the height and how high to hang it, from the rules lighting designers use.

26 inches across

Sized to the room: its length plus width in feet, read as inches.

  • Height of the light20 to 24 inches
  • Longest drop where people walk12 inches, light and chain together

See it over your own table

Numbers say it fits. A picture says whether you like it. Photograph the room, add the light from any store, and see it hanging there.

Try it free How the lighting visualizer works

The rules behind the numbers

  • Diameter from the room: add the room's length and width in feet. The total is the diameter in inches [1][2].
  • Diameter from the table: 1/2 to 2/3 of the table's width, with the light's edge about 6 inches inside the table's edge. When the room and the table disagree, go by the table [1][2].
  • Height: 2.5 to 3 inches of light for every foot of ceiling [1][2].
  • Over a table: the bottom 30 to 36 inches above the tabletop [1][2].
  • Where people walk: the bottom at least 7 feet above the floor [1][2]. That's why the calculator shows the longest drop for your ceiling.

Open, airy designs can go a size up; dense or ornate ones a size down [2]. Then check the product's listed size against these numbers, and how to check the size before you buy.

Sources

  1. Chandelier size guide: simple formulas designers use, Lighting New York. Read October 27, 2026.
  2. Chandelier size calculator, Golden Lighting. Read October 27, 2026.

Questions

What size chandelier do I need?

Add the room's length and width in feet; the total is a good diameter in inches. A 12 by 14 foot room suits a light about 26 inches across. Over a dining table, go by the table instead: 1/2 to 2/3 of its width.

How high should a chandelier hang over a dining table?

With the bottom 30 to 36 inches above the tabletop. A little higher is fine when the ceiling is taller than 8 feet.

How tall should a chandelier be?

About 2.5 to 3 inches for every foot of ceiling height. For an 8 foot ceiling that's 20 to 24 inches.

How low can a chandelier hang where people walk?

Keep the bottom at least 7 feet above the floor in a foyer, a living room or over a bed. With an 8 foot ceiling that leaves 12 inches for the light and its chain.

Will the size look right in my room?

The numbers are a starting point. To see it, take a photo of the room and add the light you like from any store: Renderior shows it hanging there, with a link to buy it.

See the light in your room before you buy it.

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