Looking for an accurate and easy converter to change square inches into square feet? Use this online converter for area for any conversions. Find more here.

**Square feet** and **square inches** are two of the smaller measurements of units used to calculate areas we might need to know in everyday situations, such as the size of materials or rooms. Square inches are used to measure some of the smallest surface areas. Use this **in² to ft² calculator** for any of your conversions, and view our other area converters for more.

## How to use the Converter for Square Inches to Square Feet?

In the **sq in to sq ft converter** above, enter the quantity of square inches in the box and click “convert” for a new quantity and accurate equivalent to appear in square feet. For the opposite conversion, see convert square feet to square inches.

## Formula to Convert Sq In – Sq Ft

Some situations may require you to know the mathematical formula for this **square inch to square foot conversion** that is used by our online converter and is shown below. For instance, 9 sq in = 0.0625 sq ft and 75 sq in = 0.520833 sq ft.

**[number of] square inches / 144 = [number of] square feet**

## Units of Square Inches

**Square inches** are a measurement of area most commonly used for material sizes like wood or paper and other small surfaces like furniture. It can also be a useful measurement in the fashion industry for measuring surface areas of materials such as satin and wool. Use our **square inch to square foot converter**.

## Units of Square Feet

This unit of area, **square feet**, is a good measurement to use for calculating the size of buildings and in particular rooms. It is most commonly used in real estate situations. When selling or buying a house you will need measurements of areas in square feet. Above you can use our **square inch – square ft converter** for your calculations.

### How many is 1 Square Inch in Square Feet?

**0.01 Square Feet**

`(1sq in = 0.01sq ft)`

### How many are 2 Square Inches in Square Feet?

**0.01 Square Feet**

`(2sq in = 0.01sq ft)`

### How many are 3 Square Inches in Square Feet?

**0.02 Square Feet**

`(3sq in = 0.02sq ft)`

### How many are 4 Square Inches in Square Feet?

**0.03 Square Feet**

`(4sq in = 0.03sq ft)`

### How many are 5 Square Inches in Square Feet?

**0.03 Square Feet**

`(5sq in = 0.03sq ft)`

### How many are 10 Square Inches in Square Feet?

**0.07 Square Feet**

`(10sq in = 0.07sq ft)`

### How many are 15 Square Inches in Square Feet?

**0.1 Square Feet**

`(15sq in = 0.1sq ft)`

### How many are 20 Square Inches in Square Feet?

**0.14 Square Feet**

`(20sq in = 0.14sq ft)`

### How many are 25 Square Inches in Square Feet?

**0.17 Square Feet**

`(25sq in = 0.17sq ft)`

### How many are 30 Square Inches in Square Feet?

**0.21 Square Feet**

`(30sq in = 0.21sq ft)`

### How many are 50 Square Inches in Square Feet?

**0.35 Square Feet**

`(50sq in = 0.35sq ft)`

### How many are 100 Square Inches in Square Feet?

**0.69 Square Feet**

`(100sq in = 0.69sq ft)`

### How many are 200 Square Inches in Square Feet?

**1.39 Square Feet**

`(200sq in = 1.39sq ft)`

### How many are 500 Square Inches in Square Feet?

**3.47 Square Feet**

`(500sq in = 3.47sq ft)`

### How many are 1000 Square Inches in Square Feet?

**6.94 Square Feet**

`(1000sq in = 6.94sq ft)`