Free tool

Coffee table size calculator

Enter your sofa, and the room if you like. You get the coffee table's length, height and width, and how far from the sofa to put it.

42 to 56 inches long

Half to two-thirds of the sofa's length. Two-thirds, 56 inches, is the usual pick.

  • Height16 to 17 inches
  • Width for a 168 sq ft room24 to 30 inches
  • Gap from the sofa14 to 18 inches

See it in front of your sofa

Numbers say it fits. A picture says whether it suits the sofa. Photograph the room, add the table from any store, and see it in place.

Try it free How the sofa visualizer works

The rules behind the numbers

  • Length: about two-thirds of the sofa [1][2]. Half to two-thirds works [3], so the calculator gives that range.
  • Height: one to two inches below the seat cushion [2]. Castlery allows up to about 4 inches lower [1]. Measure the seat with the cushion in place.
  • Width: 18 to 24 inches in a room under 150 square feet, 24 to 30 inches up to 250, and 30 to 36 inches above that or in front of an L-shaped sofa [1].
  • Gap: 14 to 18 inches between the sofa and the table [1]. Keep at least 24 inches of walkway around it [3].
  • Sectional: measure the long side that faces the room. A deep sectional often suits a deeper table [1].

Choosing a rug for the same room? The rug size calculator gives that size. Then check the product's listed size, and how to check the size before you buy.

Sources

  1. Standard dimensions for coffee tables, Castlery. Read October 29, 2026.
  2. The perfect coffee table height, solved!, Bob Vila. Read October 29, 2026.
  3. Coffee table dimensions, Flowyline. Read October 29, 2026.

Questions

What size coffee table do I need for my sofa?

One that's half to two-thirds as long as the sofa, with two-thirds the usual pick. An 84 inch sofa takes a table of 42 to 56 inches.

How tall should a coffee table be?

One to two inches lower than the sofa's seat cushion. Most seats are 17 to 19 inches high, so most tables are 16 to 18 inches.

How far should a coffee table be from the sofa?

14 to 18 inches: close enough to reach a cup, far enough for your knees.

How wide should a coffee table be?

Go by the room. 18 to 24 inches in a room under 150 square feet, 24 to 30 up to 250, and 30 to 36 in a bigger room or in front of an L-shaped sofa.

What size coffee table goes with a sectional?

Measure the long side that faces the room and use half to two-thirds of that. A deep sectional often suits a wider table, or two nesting tables.

Will it look right with my sofa?

The numbers are a starting point. To see it, take a photo of the room and add the table from any store: Renderior shows it in front of your sofa, with a link to buy it.

See the table in front of your sofa before you buy it.

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