Rug size calculator: what size rug for your bed?

Updated November 8, 2026

Choose your bed, how you want the rug to sit and your room size. The calculator draws the bed, two nightstands and every standard rug size to scale and tells you how many inches of rug show on each side and at the foot, which is what decides whether a rug looks right. The quick answer: a 5x8 for twin and full beds, a 6x9 or 8x10 for a queen, and an 8x10 or 9x12 for a king.

Rug sizes chart for every bed

This is the same calculation for every bed size and standard rug, with the rug laid long side across the bed and the nightstands left on bare floor. Each cell shows how much rug you see past each side and past the foot of the bed.

How to read it: good means 18 to 24 inches or more beyond the sides and the foot, the range most rug guides recommend. Snug is 12 to 17 inches: it works, but the rug looks a little small. Too small is under 12 inches. Generous means more than 3 ft of rug past the sides, which needs a big room to leave bare floor around it.

How the calculator measures

We measure from the bed frame, headboard included, not the mattress. A full mattress is 54 x 75 in, but a typical full bed with its frame takes 58 in by 83 in of floor. The frame is what sits on the rug, so it is what the rug has to frame. Using the mattress size would promise about two more inches of rug on each side than you will actually see.

The overhang math is simple, and you can check it yourself: (rug side across the bed − bed frame width) ÷ 2. An 8x10 is 120 in across, so under a 64 in queen frame it shows (120 − 64) ÷ 2 = 28 in on each side.

Rug size for a full bed

A 5x8 is the smallest rug that frames a full bed properly: 19 in on each side. A 6x9 gives 25 in, which looks more generous but needs a room at least 10 ft wide to leave floor around it. Here is a 10x10 room where a full bed shares the room with a desk:

10x10 room: full bed, desk and a 5x8 rug

A full bed tucked into the corner frees the opposite wall for a desk and chair, so a 10x10 room works as a bedroom and a home office.

Color palette:Olive and oakWarm terracotta

Room viewFrom aboveCutaway

AI-polished images for a more realistic impression, built on an exact 3D model of this layout. Exact sizes are on the floor plan.

Room viewFrom aboveCutaway

AI-polished images for a more realistic impression, built on an exact 3D model of this layout. Exact sizes are on the floor plan.

Same room, same furniture and the same measurements: only the colors change.

Room	10 x 10 ft (100 sq ft), 8' ceiling
Full bed	58" W x 83" D x 44" H
Nightstand	22" W x 16" D x 24" H
Desk	42" W x 20" D x 30" H
5' x 8' rug	60" W x 96" D

Walkways (about 30 in is comfortable, 24 in is a tight minimum)

Left side of the bed	40 in	comfortable
Right side of the bed	Against the wall	against wall
Foot of the bed	37 in	comfortable
Desk: chair space	40 in	comfortable

One side is against the wall: fine for one sleeper, the second person climbs over.

Open this layout in the planner and try your own room size →

The bed sits in the corner, so only the open side is a walkway: 40 in there and 37 in at the foot. The 5x8 runs across the bed and reaches out into the room where you actually walk, which is the point of a bedroom rug.

Rug size for a twin bed (and kids’ rooms)

A 5x8 is plenty for a twin bed: 27 in on each side when it is laid across the bed. A 5x7 (60 x 84 in) works too: (84 − 42) ÷ 2 = 21 in per side. In many kids’ rooms the twin bed stands against a wall, and then a rug beside the bed, under the play area, often makes more sense than one under the bed. A twin XL is the same width as a twin but 5 in longer, so the same rug shows a little less at the foot.

Rug size for queen and king beds

These have their own pages with three rugs in the same room, rendered: rug size for a queen bed (6x9 is the minimum, 8x10 the usual pick) and rug size for a king bed (8x10 is the minimum, 9x12 the comfortable fit).

Check the room, not just the bed

A rug that suits the bed can still be too big for the room. Leave bare floor between the rug and the walls: when a rug touches the walls it reads as carpet. The calculator shows that border for your room size, and a rug size turns red if it does not fit at all. Watch the door too: an inward-swinging door sweeps about 32 inches into the room and can catch a thick rug.

For where exactly to put the rug, with diagrams for the classic placement, the whole bed on the rug and runners on each side, read how to place a rug under a bed.