Use this **carpet calculator** to figure out the cost of your dream carpet. This tool will save you a lot of time and money that you would otherwise spend on calculations and pondering whether buying that carpet you’ve been eying for so long pays off.

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It will also show you **how to calculate carpet costs** on your own in no time. All in all, we promise it is bound to be an invaluable help in the carpeting process. You can also read our short guide on how to choose a carpet to make sure you are getting exactly what you need.

## How to calculate carpet cost?

Even though it may seem complicated at first, the carpet cost calculator is easy and intuitive to use. Start by **choosing the shape of your carpet** and then follow these short steps and get your carpet’s price calculated in no time.

**1.** **RECTANGLE**

For a **rectangular carpet**, put in the carpet’s **width** and **length** in the carpet calculator. If you want to do the math on your own, use the following formula to calculate the area:

`carpet area = carpet's width × carpet's length`

Once you know the area, you can move on to calculating the cost. Put in the carpet’s **price per unit of area** (remember to choose the unit of area your carpet is being sold in), and you will get the total cost thanks to the following equation:

`carpet cost = carpet area × carpet price per unit`

**2.** **CIRCLE**

For a **circular carpet**, the only value you need to put in the calculator is the **radius** of your carpet. Then, the carpet price calculator will work out the area with this equation:

`carpet area = π × radius²`

To calculate the carpet’s cost, put in the **price of the carpet per unit** and the area you have just calculated in the following formula:

`carpet cost = carpet area × carpet price per unit`

**3.** **ELLIPSE**

If you’re going for an **oval carpet**, give the calculator the lengths of the **A-axis** and the **B-axis** of the ellipsis, or use the following formula to calculate its area on your own:

`carpet area = axis A × axis B × π`

Now all that’s left to do is using the **price of the carpet per unit** and the area’s value to calculate the cost:

`carpet cost = carpet area × carpet price per unit`

**4. PENTAGON**

To calculate the area of a **pentagonal carpet**, put in the length of the pentagon’s **side** so that the carpet cost calculator can work out its area. If you feel like doing the math on your own, you can use the following equation:

`carpet area = side² × √(25 + 10√5) / 4`

Next, use the area to calculate the cost:

`carpet cost = carpet area × carpet price per unit`

**5. HEXAGON**

Lastly, for a **hexagonal carpet**, you need to do the same thing you would do with a pentagon – give the calculator the **hexagon’s side’s length**, or use this formula to get its area on your own:

`carpet area = 3/2 × √3 × side²`

Calculating the cost is the same as in the previous cases:

`carpet cost = carpet area × carpet price per unit`

**6. OTHER SHAPES**

In the case of any other shapes, search for the shape and “area” here on Omni Calculator to help find the shape. Then, just like in the previous cases, simply multiply the price per unit of area by the carpet’s area (or input it into the carpet price calculator):

`carpet cost = carpet area × carpet price per unit`