Note : Required fields are marked with “asterisks (*)” for better understanding.
Note : Required fields are marked with “asterisks (*)” for better understanding.
Note : Required fields are marked with “asterisks (*)” for better understanding.
Use our Rug Size Calculator by WhatsMyRugSize.com: Are you having trouble choosing the right rug size for your living area? Don’t be worried! We’re thrilled to launch our Rug Size Calculator, a user-friendly tool that will help you make the best decision every time. Say goodbye to the worry and guesswork of choosing a rug, and welcome the confidence that comes with knowing you’ve discovered the ideal fit.
Say goodbye to the worry and guesswork of choosing a rug, and welcome the confidence that comes with knowing you’ve discovered the ideal fit.
Area Rug Size Calculator – Best Free and Easy
Our user-friendly Rug Size Calculator considers the dimensions of your room, furniture, and preferences to recommend the ideal rug size for your space.
Whether you’re decorating your living room, bedroom, or dining area, this handy tool will guide you through the process step-by-step, ensuring that you end up with a rug that complements your room beautifully.
So go ahead and give our Rug Size Calculator a try – it’s time to elevate your home decor!
How to Use Our WhatsMyRugSize Rug Calculator?
Our rug size calculator is super easy to use and will help you find the perfect rug for your space in no time! All you have to do is enter the dimensions of the room you want to carpet, and our calculator will do the rest.
You can easily identify the shape of the rug you’re looking for. It could be round, runner, rectangular, octagon, oval, or square.
You can adjust the size to cover only the spots you want. This tool makes sure your rug is the right size.
So, follow along the steps below to use the tools correctly.
How To Determine Rug Size For A Room? – Rug Size For Room Calculator
Here’s a step-by-step tutorial on how to measure rug size for a room:

- Measurement: Measure the length and width of your room or furniture. Go to our rug size calculator and choose either the “Inside a Room” or “Around Furniture” tab based on your measurement.
- Style: Select your desired Rug Style from the drop-down menu. For example, if you want a circular rug, choose “Circle.”
- Location: Choose a location where you want to put the rug for more accurate results. This step is optional, but we recommend you choose one. For example, if you want to put the rug in your living room, select “Living Room.”
- Calculation: Enter the measured value of the width into the Width field and select the measurement unit you used. For example, if you measured your room in feet and the width of your room is 14 ft, enter “14” and select “ft.”
- Uncover Area: If there are areas you want to avoid and keep uncovered by the rug, use the “Space Won’t Be Covering” field to put a perimeter around those areas; it’s totally optional. For example, if you want 2 sq.ft. of area to be uncovered where your fireplace is located, enter “2”and select “ft²” in the field. We are not going to use this field for the sake of this guide.
- Result: Once you’ve completed these steps, you should see the “Rug Area” result under the calculator. Based on the calculations, you’ll be able to determine the perfect custom rug size for your room.
For the example above, the Rug Area result is 153 sq. ft., so we’ll need a rug of that size to cover our desired amount of space.
Check out the formula of area rug size calculator which is used to determine the Rug Area for a better understanding and values are used from the examples above,
Area = 3.141592 * (Width/2)^2
Area = 3.141592 * (14/2)^2
Area = 3.141592 * 49
Area = 153 sq. ft.
How to measure Rug size that will sit around furniture?
When determining the size of a rug to place under or around a piece of furniture, a specific formula can be used for accurate calculations. The formula is: Area = (Length+8) x (Width+8).
Area = (Length+8) x (Width+8)
By adding 8 inches to both the length and width of the furniture, this formula takes into account the ideal amount of space needed for the rug to properly fit and accommodate the furniture.
For example,
let’s say we have a couch that is 9 feet or 108 inches long and 3 feet or 36 inches wide and we want to find the perfect size rug to place underneath it. To calculate this, we would convert the measurements to inches and plug them into the formula:
Area = (Length+8) x (Width+8)
Area = (108+8) x (36+8)
Area = 116 x 44
Area = 5104 sq. inches or 35.44 sq. ft.
This means that the custom rug size we need is 35.44 square feet. By using this formula, you can determine the exact size of rug needed to fit your furniture perfectly, ensuring that it looks and feels just right in your space.
Rug size cost calculator – How does our Rug size cost calculator work?
If you want to calculate the cost of your custom rug, you can use the rug size cost calculator which is a simple rug value estimator tool to operate.
- Step – 1: First, use the Calculator to calculate the custom rug size. Then, choose the Cost Calculator tab.
- Step – 2: In the Rug Area field, enter the value of the custom rug size from our calculator. Alternatively, you can enter your own value. Make sure to select the proper measurement unit to get accurate results.
- Step – 3: Provide the Cost per area unit, which is mandatory to calculate the cost. This cost may vary depending on the material, quality, and other factors.
- Step – 4: Now, you are all set! Check the Custom Rug Cost heading to see the total cost you have to pay for your custom rug. This will give you an approximate idea of how much you need to budget for your rug.

How does our calculator work?
Our rug size calculator uses formulas to provide the most accurate and customized rug size for your needs. Here are some of the formulas we use:
For A Room:
- Rectangular, Runner or Square:
- Circle:
- Oval:
- Octagon:
Note: If you have any space you don’t want to cover than that amount of space will be considered as Uncovered Area and subtracted from the length and width value.
Around a Room:
- Rectangular, Runner or Square:
- Circle:
- Oval:
- Octagon:
To use these formulas, you need to input the following values:
- Area: the total area that you want to cover with the rug
- r: the radius of the circle or oval rug
- Length: the length of the room or furniture that you want to cover with the rug
- Width: the width of the room or furniture that you want to cover with the rug
- Uncovered Area: the area that you want to keep uncovered by the rug (if any)
By using these formulas and providing the necessary input values, our rug size calculator can determine the perfect rug size for you.
Rug Pad Size Calculator
The formula for such a Rug Pad Size Calculator as follows:
Rug Pad Size = Rug Length + 2 x Overlap Margin
Rug Pad Width = Rug Width + 2 x Overlap Margin
In these formulas:
- Rug Length is the length of the rug you want to place the rug pad under.
- Rug Width is the width of the rug.
- Overlap Margin is the amount of additional space you want the rug pad to extend beyond the edges of the rug for better grip and protection.
The multiplication by 2 in each formula accounts for the overlap on both sides of the rug. The resulting values give you the dimensions of the rug pad that would suit the specified rug size. Adjust the overlap margin based on your preference or specific needs.
How do I calculate rug size?
Our Calculators from WhatsMyRugSize.com
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