Rug Size Calculator

Room Type

Units

Room Length (ft)

Room Width (ft)

Furniture Placement

Recommended Rug Size

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Room Area

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sq ft

Rug Area

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sq ft

Floor Coverage

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of room floor

Room Preview (top-down view)

Room Rug Furniture

How Standard Sizes Fit Your Room

Placement Tips

Standard Rug Sizes Reference

Rugs come in standard sizes. Use this table to find the closest standard size to your calculated recommendation, or as a quick reference when shopping.

Size (ft)	Size (cm)	Area (sq ft)	Best For
3 x 5	90 x 150	15	Entryway, kitchen accent, small bathroom
4 x 6	120 x 180	24	Reading nook, beside bed, small accent
5 x 8	150 x 240	40	Small living room, apartment, under queen bed
6 x 9	180 x 270	54	Medium living room, dining room (4-6 seats)
8 x 10	240 x 300	80	Standard living room, dining room (6-8 seats), master bedroom
9 x 12	270 x 360	108	Large living room, dining room (8+ seats), large bedroom
10 x 14	300 x 420	140	Open floor plans, great rooms, large dining areas
12 x 15	360 x 450	180	Extra large rooms, open concept spaces

Round rugs are also available in 4ft, 6ft, 8ft, and 10ft diameters. Runner rugs are typically 2-3 ft wide and come in lengths of 6-14 ft, ideal for hallways and kitchens.

Rug Placement Guide by Room

Living Room

The rug anchors your seating area and defines the conversation space. There are three common approaches:

All legs on: The entire sofa and chairs sit on the rug. This creates the most cohesive, luxurious look. Requires a larger rug (typically 9x12 or bigger).
Front legs on: Only the front legs of furniture rest on the rug. This is the most popular approach and works with mid-size rugs (8x10). It ties the seating together while saving cost.
Floating: The rug sits in the center without touching furniture. Works best with smaller rugs (5x8) in open layouts, but can look disconnected if the rug is too small.

Leave 12-18 inches of bare floor between the rug edge and the walls. In smaller rooms, 8-12 inches is fine.

Bedroom

The rug should extend at least 18-24 inches beyond each side and the foot of the bed. This ensures you step onto a soft surface when getting out of bed. Options include:

Full rug under bed: A large rug (8x10 or 9x12) placed under the bed with equal extension on sides and foot. Best overall look.
Two-thirds under bed: The rug extends from the foot of the bed to about two-thirds under the mattress. Saves on rug size.
Runners on sides: Two matching runners (2.5x8 ft) on each side of the bed. Budget-friendly alternative.

Dining Room

The dining rug must be large enough that chairs remain on the rug even when pulled out -- add at least 24 inches (2 feet) to each side of the table dimensions. This prevents chair legs from catching on the rug edge, which causes tripping and wear.

Rectangular table: Add 4 ft to both the length and width of your table for minimum rug size.
Round table: Add 4 ft to the table diameter. A round rug works well here.
Oval table: Treat like a rectangular table of similar dimensions.

How This Calculator Works

This calculator uses room dimensions and furniture layout preferences to recommend the ideal rug size from standard available sizes.

Calculation Logic

Living room: Based on furniture placement style, the calculator determines how much floor the rug needs to cover. For "all legs on," the rug covers about 70-80% of the room width. For "front legs only," about 55-65%. For floating, about 40-50%.
Bedroom: The calculator adds 18-24 inches on each side and the foot of the bed, then matches to the nearest standard size that fits within the room.
Dining room: The calculator adds 24 inches to all sides of the table to ensure chairs can be pulled out while staying on the rug.
Size matching: The ideal calculated dimensions are matched to the closest standard rug size that is not larger than the room.

Tips for Choosing the Right Rug

When between two sizes, go larger -- a too-small rug makes a room feel disjointed
Use painter's tape on the floor to visualize the rug size before purchasing
Consider rug pads for safety and to protect your floors
For open floor plans, use separate rugs to define different zones
Orient the rug with the room shape: a long rug in a long room, not across it

Rug Size FAQ

What size rug do I need for a living room?

For a living room, the most common rug sizes are 8x10 or 9x12 feet. The rug should be large enough that all furniture front legs sit on it. For smaller living rooms (under 12x12 ft), a 5x8 rug works well. Leave 12-18 inches of bare floor between the rug edge and the wall.

What size rug goes under a queen bed?

A queen bed (60x80 inches) works best with an 8x10 or 9x12 rug. Place the rug so it extends at least 18-24 inches beyond each side and the foot of the bed. This ensures you step onto the rug when getting out of bed.

How much bigger should a rug be than a dining table?

A dining room rug should extend at least 24 inches beyond all sides of the table. This allows chairs to remain on the rug even when pulled out. For a 6-person table (about 36x72 inches), you need at least an 8x10 rug.

Should a rug go under the couch?

Ideally, yes. At minimum, the front legs of all seating should be on the rug. For the best look, the entire sofa sits on the rug with 3-6 inches of rug extending beyond the furniture on all sides.

How far should a rug be from the wall?

Leave 12-18 inches of bare floor between the rug and the wall in most rooms. In smaller rooms, 8-12 inches is acceptable. The exposed floor creates a visual frame that makes the room feel intentionally designed.

Can I use a round rug instead of rectangular?

Round rugs work well under round tables, in foyers, or as accent pieces. For living rooms with L-shaped seating, round rugs can soften the angles. Use a round rug with a diameter roughly matching the shorter dimension of the recommended rectangular rug.

What if my room is not rectangular?

For L-shaped rooms, calculate each section separately and consider using two rugs to define different zones. For oddly shaped rooms, use the widest and longest dimensions and focus on the primary furniture grouping area.

Do I need a rug pad?

Yes, a rug pad is recommended for all area rugs. It prevents slipping, reduces wear on the rug and floor, adds cushioning, and helps the rug lie flat. Choose a pad slightly smaller than the rug (about 1 inch less on each side).

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