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Rug Size Calculator
Pick the right area rug in a minute. Enter your room size and how the furniture is arranged, and get the standard rug size that follows the usual design rules, how much bare floor it leaves, and a to-scale preview of where it goes.
Last updated:
Which room?
ft
ft
in
12 in in small rooms, 18–24 in in large ones.
ft
Outside edge to outside edge of sofa and chairs.
ft
in
18–24 in gives a soft step out of bed.
in
ft
ft
in
24 in minimum, 30–36 in is roomier.
Enter your values to see the result.
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How to use the Rug Size Calculator
- Choose the room type: living, bedroom, dining or any room.
- Enter the room length and width and how much bare floor you want around the rug.
- Describe the furniture: seating area and layout, bed size and placement, or table size.
- Read the recommended size and check the to-scale preview.
- Compare other standard sizes in the table before you buy.
Rug sizing rules used by the calculator
- Room limit: rug length ≤ room length − 2 × floor border, and the same for width.
- Living room, all legs on: rug ≥ seating area + 6 in on each side.
- Living room, front legs on: rug ≈ seating area − 2 ft, so it reaches about 12 in under the sofa and chairs.
- Bedroom: across = bed width + 2 × side extension; along = ⅔ of the bed length (or all of it) + extension past the foot.
- Dining room: rug ≥ table + 2 × chair pull-out space (24 in minimum) in each direction.
Quick rug size guide
| Room or furniture | Usual rug size | Notes |
|---|---|---|
| Small living room (about 10 × 12 ft) | 5 × 8 or 6 × 9 | Front legs on, or floating |
| Average living room (about 12 × 15 ft) | 8 × 10 | Front legs on |
| Large living room (14 × 18 ft or more) | 9 × 12 or 10 × 14 | All legs on |
| Twin or full bed | 5 × 8 or 6 × 9 | Placed across the bed |
| Queen bed | 8 × 10 | 10 ft side across the bed |
| King or California king bed | 9 × 12 | 12 ft side across the bed |
| Dining table for 4 (about 4 × 3 ft) | 6 × 9 or 8' round | 24 in or more around |
| Dining table for 6 (about 6 × 3.5 ft) | 8 × 10 | 9 × 12 for 30–36 in clearance |
| Dining table for 8 (about 8 × 3.5 ft) | 9 × 12 | 10 × 14 for roomier chairs |
Tips before you buy
- Mark the size on the floor with painter's tape and live with it for a day.
- When torn between two sizes, the bigger one usually looks better, as long as the floor border remains.
- Use a rug pad about 1 in smaller than the rug on each side to stop slipping and protect the floor.
- Low-pile or flatweave rugs are easiest under dining chairs.
Frequently asked questions
What size rug do I need for my living room?
Measure the seating area from the outside edge of the sofa to the outside edge of the chairs. For a front-legs-on layout choose a rug about 2 ft smaller than that area so it reaches under the front of each piece; for all legs on, choose one about 1 ft larger. In many living rooms that is an 8 × 10 or 9 × 12.
What size rug goes under a queen bed?
A queen bed is 60 in wide, so a rug that extends 18–24 in on each side needs to be 96–108 in (8–9 ft) across the bed. An 8 × 10 placed with the 10 ft side across the bed is the usual choice; a 6 × 9 works in tighter rooms. A king (76 in wide) usually takes a 9 × 12.
How much floor should show around an area rug?
Designers usually leave 12–18 in of bare floor between the rug and the walls, and up to 24 in in large rooms. Less than about 8 in looks like wall-to-wall carpet that does not fit; much more makes the rug look small.
What size rug do I need under a dining table?
Add at least 24 in on every side of the table so chairs stay on the rug when pulled out; 30–36 in is more comfortable. A 6 × 3.5 ft table therefore needs at least a 10 × 7.5 ft area, which an 8 × 10 rug covers.
Should a round table have a round rug?
A round rug echoes a round table nicely and should be the table diameter plus 24–30 in on each side: a 4 ft table needs about an 8 ft round rug. A square rug of the same size works too and is often easier to find.
What are the standard rug sizes?
Common rectangular sizes are 2 × 3, 3 × 5, 4 × 6, 5 × 7 or 5 × 8, 6 × 9, 8 × 10, 9 × 12, 10 × 14 and 12 × 15 ft; round rugs come in 4, 5, 6, 8 and 10 ft diameters. Exact dimensions vary slightly by maker, such as 7'10" × 9'10" for an "8 × 10".
Are all the tools on FreeToolCabin tested for quality and accuracy?
Yes! Every tool on our site undergoes automated Q/A testing in real browser environments to ensure high precision, correct output, and zero errors. If you happen to spot a bug or have a suggestion, please contact us at [email protected] and our team will review it right away.
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