Rug Size Calculator

Picking the right rug can instantly transform a room—but the wrong size can throw everything off. Whether you’re placing a rug under a sectional, a dining table, or a king bed, our Rug Size Calculator helps you find the perfect fit based on your furniture layout and room size.

This tool works for living rooms, bedrooms, dining spaces, entryways, and more. No more second-guessing or buying rugs that look too small.

How to Choose the Right Rug Size

The key to picking the right rug is understanding your layout and leaving the right amount of floor space around it. Here are some universal tips:

• Leave 18–24 inches of bare floor around the rug in large rooms
• In smaller spaces, 8–12 inches of exposed flooring is fine
• Keep rug edges at least 6 inches from walls
• Match rug shape to your furniture grouping (round table = round rug)

Standard Rug Sizes

Here are the most common standard rug dimensions (in feet and centimeters):

Feet	Centimeters	Best Use
3' x 5'	90 x 150 cm	Small spaces, doorways
5' x 8'	160 x 240 cm	Small living rooms, under coffee tables
6' x 9'	180 x 270 cm	Bedrooms, medium dining tables
8' x 10'	240 x 300 cm	Living rooms, dining rooms
9' x 12'	275 x 365 cm	Large living areas or master bedrooms

Rug Size Calculator for Sectional Sofas

When placing a rug under a sectional:

• Choose a rug large enough to fit under the front legs of all seats
• Allow at least 6–8 inches of rug beyond the edges of the sectional
• Common sizes: 8x10 ft (240x300 cm), 9x12 ft (275x365 cm)

A smaller 5x8 rug will usually look too small unless the sectional is compact or you're layering rugs.

Rug Size Calculator for Dining Room

Your rug should be large enough so that dining chairs stay on the rug even when pulled out.

• Add at least 24 inches to each side of the table to determine rug size
• Round tables work best with round rugs, but rectangular works too

Example: A 3x6 ft table needs a rug that’s at least 7x10 ft.

Rug Size Calculator for Bedroom

To properly frame your bed:

• Queen bed: 8x10 ft rug is ideal
• King bed: Use a 9x12 ft rug for full coverage
• Alternatively, use two 3x5 rugs on either side

The rug should extend 18–24 inches beyond the sides and foot of the bed.

What Size Rug Is 160cm x 200cm?

A rug that measures 160cm x 200cm is approximately 5'3" x 6'6". It’s a mid-size rug, great for placing under a coffee table or in a small bedroom.

What Size Rug for a 12x10 Room?

For a 12x10 foot room, a 6x9 ft or 8x10 ft rug will usually work best, depending on furniture layout. Leave 12–18 inches of floor around the rug for best balance.

Common Rug Placement Mistakes

• Buying a rug that’s too small for the space
• Letting chairs or furniture legs hang off unevenly
• Pushing rugs too close to walls (you want visual breathing room)
• Using the wrong shape (round table with square rug)

FAQs About Rug Sizing

How do I calculate the right rug size?

Measure your room or furniture grouping, subtract desired border spacing (usually 18–24 inches), and match to the closest standard rug size.

Should a rug go under all furniture?

Not always. For living rooms, it’s ideal if the front legs of furniture sit on the rug. For bedrooms, aim for full or partial coverage around the bed.

How big should a rug be under a dining table?

It should be large enough that chairs remain fully on the rug, even when pulled out—usually 24 inches longer and wider than the table itself.

Can a rug be too big for a room?

Yes. Rugs should never cover the entire floor wall to wall. Leave at least 8–24 inches of visible flooring around the edges.

Final Thoughts

Choosing the right rug size doesn’t need to be complicated. Use our Rug Size Calculator to get quick recommendations for every room type—whether it’s for a dining room, bedroom, living area, or sectional. With the right size, your space will feel more balanced, styled, and comfortable.