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Rug Size Calculator

If your goal is to transform your home from already functional to more fabulous, using a rug size calculator can be a great option. With this, there will be no room for any guesswork or errors while choosing rugs for your home or workspace. With a rug size for room calculator, all you have to do is enter your preferred rug shape and space measurements, and the calculator will recommend the perfect rug size for a balanced and aesthetically pleasing interior look. Whether you're revamping a living room, dining room or bedroom, this guide and calculator will help you to choose the right rug size for every space in your home.

How to use the rug size calculator?

Our online area rug size calculator simplifies the process of finding the perfect rug dimensions. Follow these simple steps:

Fix the Rug shape

Choose your desired rug shape from the available options - square, rectangular, round, and more.

Take Measurements of the space

Measure the length and width of the area where you plan to place the rug. When doing so, you must also consider existing furniture arrangement and foot-traffic load. Consider leaving enough space around the rug's edges to avoid furniture crowding and restricting comfortable movement in the room. Usually, an extension of 18-24 inches of clearance between the rug and walls in larger rooms and 12-18 inches in smaller spaces is the best way of doing it.

Enter the values in the Calculator

Enter the measured length and width of the space into the designated fields in the rug size calculator. However, if you are using a round rug, enter the right diameter or radius for the most accurate results. The calculator will automatically calculate the recommended rug size based on your selections and measurements.

Manually calculating Area Rug Size

For those who prefer a DIY approach, here's a breakdown of calculating rug size for different shapes:

Calculation for Square Rugs

Formula: Area = Side x Side

Example: Let's say your space measures 10 feet x 10 feet.

Area = 10 ft x 10 ft = 100 sq ft

Therefore, an area rug size that is less than 100 sq ft, would fit in right. Sizes like 8’ x 8’, 9’ x 9’ or 10’ x 10 could be chosen.

Calculation for Rectangular Rugs

Formula: Area = Length x Width

Example: If your space measures 12 feet x 15 feet, the area would be:

Area = 12 ft x 15 ft = 180 sq ft

Based on this, a rectangular rug with an area close to 180 sq ft would be ideal. Standard sizes like 8' x 10', 9' x 12', or 10' x 14' could be appropriate options.

Calculation for Round Rugs

Formula: Area = π (radius^2)

Example: If you prefer a round rug and have a designated space of 8 feet diameter, the area would be:

Area = 3.14 (4 ft^2) (radius squared) = 50.24 sq ft (approximately)

Therefore, a round rug with an approximate diameter of 8 feet or a slightly smaller size would be suitable. Standard round rug sizes include 5' diameter, 6' diameter, and 8' diameter, which can guide your selection.

Calculating Rug Pad Size

The size of your rug pad should ideally match the dimensions of your rug. This ensures complete coverage and prevents the rug from slipping or bunching. Rug pads also offer additional benefits like noise reduction, better underfoot comfort and protection for your floor.

Calculating the Rug Size for Each room

The ideal rug size for a room depends on various factors like the space's function, furniture arrangement, and expected aesthetic. Here are some general guidelines for choosing the right rug size for different rooms:

Living Room

If you are wondering what size rug for the living room would be perfect, here is the answer. The rug should be large enough to extend under the front legs of your primary seating area, such as the sofa and armchairs. This creates a sense of balance and defines the space in between.

Note that, you must aim for at least 18-24 inches of space between the rug's edge and the walls. For larger living rooms, consider a rug that extends partially under additional furniture pieces like coffee tables or side tables.

Dining Room

The rug should comfortably fit under your dining table and chairs, allowing enough space for pulling chairs out without them getting stuck on the rug's edge. Ideally, leave 2-3 feet of clearance around the table. You can always take the help of a rug size for a dining table calculator for the most precise results.


In larger bedrooms, the rug can extend partially under the bed, leaving space for bedside tables. Alternatively, a smaller rug can be placed in front of the bed, defining the sleeping area.


Opt for a small to medium-sized rug placed properly in areas with high foot traffic, like in front of the sink or stove. Consider washable and easy-to-clean materials for kitchen rugs.

Hallway and Entryway

Long, narrow runners are ideal for hallways and entryways, so that there is a proper walking path and protecting the floor from dirt and wear.

Overall, the best rug size depends on your personal preferences, furniture arrangement, and the specific layout of your space. Consider using the rug size for a room calculator along with these tips to achieve a balanced and visually appealing rug placement look in every room.

To find the perfect rug size, you can also refer to an easy formula which is RS= (W+8), (L+8). Here, RS is the final width and length of the rug in inches, W refers to the width of the furniture, and L is the length of the same, both in inches

You can also find the perfect rug size based on their shape. Here are some simple formulas that can help you

Oval Rugs

Area = π x (length/2) x (width/2), where π is approximately equal to 3.14.

Rectangle Rugs

Area = length x width.

Circular Rugs

Area = π x (diameter/2)^2, where π is approximately equal to 3.14.

Runner Rugs

Area = length X Width


How do you calculate rug size?

Measure the length and width of rectangular rugs, then multiply the results. Simply measure the furthest points from the center of the object, be it spherical or any other shape.

What size rug fits for a dining room?

The typical dining room is 14 x16 feet, while the typical dining room rug is 9 x 12.

What comes first length or width in rugs?

Whichever measurement has a higher value comes first.

What are more standard and normal sizes for rugs?

Rugs often come in sizes of 3' x 5', 5' x 8', 8' x 10', 9' x 12', and 12' x 15'.

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