Trying to change from square inches to square metres? Use this sq in to sq m converter to help with your calculations. Easy and accurate conversions here.

Between these two **surface area units** there is quite a large difference as **square inches** are considerably smaller than **square metres**. They are both used mostly in the house to measure things from tables to room sizes. However, square metres can sometimes also be used to measure smaller plots of lands, such as parks or gardens. Our **in² to m² converter** will help you with conversions, as will our other area converters.

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

Firstly enter the quantity of square inches you want to convert in the box above and click “convert” for our **sq in to sq m calculator** to give the equivalent quantity in square metres. To convert the other way around, use the convert square metres to square inches tool.

## Formula for Converting In² – M²

The mathematical formula for this **square inch to square metre conversion** is shown below should you need to use it yourself or for your own knowledge. It is used by our online calculator too. Some examples include, 6 sq in = 0.0069 sq m and 90 sq in = 0.058 sq m.

**[number of] square inches / 1550 = [number of] square metres**

## 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 metre converter**.

## Unit of Square Metres

A popular unit of area for smaller spaces and measurements are **square metres**. It is said that half a doorway approximately equates to a square metre. As a smaller unit of measurement, it is used more commonly for everyday situations and calculations. Above you will find our **sq in to sq m conversion** tool.

### How much is 1 Square Inch in Square Metres?

**0 Square Metres**

`(1sq in = 0sq m)`

### How much are 10 Square Inches in Square Metres?

**0.01 Square Metres**

`(10sq in = 0.01sq m)`

### How much are 15 Square Inches in Square Metres?

**0.01 Square Metres**

`(15sq in = 0.01sq m)`

### How much are 20 Square Inches in Square Metres?

**0.01 Square Metres**

`(20sq in = 0.01sq m)`

### How much are 25 Square Inches in Square Metres?

**0.02 Square Metres**

`(25sq in = 0.02sq m)`

### How much are 30 Square Inches in Square Metres?

**0.02 Square Metres**

`(30sq in = 0.02sq m)`

### How much are 50 Square Inches in Square Metres?

**0.03 Square Metres**

`(50sq in = 0.03sq m)`

### How much are 100 Square Inches in Square Metres?

**0.06 Square Metres**

`(100sq in = 0.06sq m)`

### How much are 200 Square Inches in Square Metres?

**0.13 Square Metres**

`(200sq in = 0.13sq m)`

### How much are 500 Square Inches in Square Metres?

**0.32 Square Metres**

`(500sq in = 0.32sq m)`

### How much are 1000 Square Inches in Square Metres?

**0.65 Square Metres**

`(1000sq in = 0.65sq m)`

### How much are 5000 Square Inches in Square Metres?

**3.23 Square Metres**

`(5000sq in = 3.23sq m)`

### How much are 10000 Square Inches in Square Metres?

**6.45 Square Metres**

`(10000sq in = 6.45sq m)`

### How much are 20000 Square Inches in Square Metres?

**12.9 Square Metres**

`(20000sq in = 12.9sq m)`

### How much are 40000 Square Inches in Square Metres?

**25.81 Square Metres**

`(40000sq in = 25.81sq m)`

### How much are 50000 Square Inches in Square Metres?

**32.26 Square Metres**

`(50000sq in = 32.26sq m)`

### How much are 100000 Square Inches in Square Metres?

**64.52 Square Metres**

`(100000sq in = 64.52sq m)`