Free tool

Rug size calculator

Enter the living room, or the dining table the rug goes under. You get the standard rug size that fits, from the rules designers and rug makers use.

Living room

9 by 12 feet

The largest standard rug that leaves at least 12 inches of floor around it.

  • Floor at the ends12 inches
  • Floor at the sides18 inches

Under a dining table

8 by 10 feet

The smallest standard rug that reaches 24 inches past the table on every side, so the chairs stay on it when pulled out.

  • Smallest that works7' 4" by 10'

See it on your own floor

Numbers say it fits. A picture says whether the color works. Photograph the room, add the rug from any store, and see it in place.

Try it free How the furniture visualizer works

The rules behind the sizes

  • Living room: leave 12 to 18 inches of bare floor between the rug and the walls [1]. The calculator picks the largest standard size that keeps at least 12 inches.
  • Dining room: the rug reaches at least 24 inches past the table on every side, so pulled-out chairs stay on it [2]. For a round table, enter its diameter twice.
  • Bedroom: the rug reaches 18 to 24 inches past the sides and the foot of the bed. The usual sizes are 8 by 10 for a queen and 9 by 12 for a king [3].

Standard sizes are 5 by 7, 6 by 9, 8 by 10, 9 by 12 and 10 by 14 feet [1]. Then check the listed size against the room, and how to check the size before you buy.

Sources

  1. Rug size guide, Ruggable. Read October 28, 2026.
  2. Rug under dining table: what size should it be?, Ruggable. Read October 28, 2026.
  3. Bedroom rug size & placement: everything you need to know, Designer Trapped. Read October 28, 2026.

Questions

What size rug do I need for my living room?

Leave 12 to 18 inches of bare floor between the rug and the walls. In a 12 by 14 foot room that's a 9 by 12 rug.

What size rug goes under a dining table?

One that reaches at least 24 inches past the table on every side, so the chairs stay on the rug when they're pulled out. Add 48 inches to the table's length and width for the smallest size that works.

What size rug goes under a queen or king bed?

Let it reach 18 to 24 inches past the sides and the foot of the bed. The usual choice is 8 by 10 for a queen and 9 by 12 for a king.

Is 8 by 10 or 9 by 12 better?

Whichever leaves 12 to 18 inches of floor between the rug and the walls. An 8 by 10 suits a room about 11 by 13 feet; a 9 by 12, about 12 by 14.

Will the rug look right with my floor?

Size is half of it. To see the color and pattern, take a photo of the room and add the rug from any store: Renderior shows it on your floor, with a link to buy it.

See the rug on your floor before you buy it.

Try it free 2 free pictures every day. No card needed.