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# Square Footage Calculator

To use square footage calculator, enter the values, and hit calculate button

## Square Footage Calculator

Square Footage Calculator is an online tool used to find an area of a square, rectangle, circle, or ellipse in a foot.

## What is a square?

A **square **is a four-sided polygon with few unique properties. It is a special type of rectangle, with the additional characteristic that all four sides are of equal length and all four angles are right angles (**90 degrees**).

### The formula of the area of different shapes

`Area of a Square = (Length)`

^{2}

`Area of the Rectangle = Length x Width`

`Area of the Circle = π x r`

^{2}

`Area of ellipse = π (a x b)`

**Note:**

(π = 22/7 or 3.14)

## How to evaluate the area of different shapes?

We'll solve some examples to understand how to evaluate the area of different shapes.

**Example 1:**

Calculate the area of the square and the total cost value for the total square foot, if the length of one side is **20ft **and also the price per square foot is **23 $**.

**Solution:**

**Step 1: **Write the data from the above question.

Side Length = 20, area of a square =?

**Step 2: **Write the formula of the area of a square and the total cost.

Area of Square = (Side Length)^{2}

Total Cost = total area x cost per square ft

**Step 3: **Put the values in the above formula and simplify.

`Area of Square = (Side Length)`

^{2}

= (20)^{2}

= (20) x (20)

**Area of Square = 400 ft ^{2}**

Total Cost = total area x cost per square ft

= 400 x 23

**Total Cost = 9200 $**

**Example 2:**

Calculate the area of the circle and the total cost value for the total square foot, if the radius of the circle is **20ft **and also the price per square foot is **29 $**.

**Solution:**

**Step 1: **Write the data from the above question.

Radius = 20, area of circle =?

**Step 2: **Write the formula of the area of a circle and the total cost.

Area of the Circle = π x r^{2}

Total Cost = total area x cost per square ft

**Step 3: **Put the values in the above formula and simplify**.**

Area of the Circle = π x r^{2}

= 3.14 x (20)^{2}

= 3.14 x (20) x (20)

**Area of Circle = 1256.6 ft ^{2}**

Total Cost = total area x cost per square ft

= 1256.6 x 29

**Total Cost = 36441.4 $**