Square Meters and Square Inches Converter

Using the Square Meters and Square Inches Converter

This converter can help you when converting between square meters, a metric unit of area, and square inches, an imperial unit of area.

Start off by choosing between the American and British spelling of the word meter (which is spelled ‘metre’ if you select the British spelling).

You can choose your input unit in the ‘CONVERT FROM’ section. The choice is between square meters (m²) and square inches (in²).

In the ‘CONVERT TO’ section, you choose the output unit out of the same 2 options.

Another way to choose the input and output units is to simply stick with the default selection or swap the order by clicking on the icon with the 2 arrows headed in opposite directions.

The next step requires you to type in the value of your input unit as a decimal number, using the decimal dot. Write the value into the ‘VALUE TO CONVERT’ section.

Choose the number of decimal places you want your result rounded toward and click on ‘CONVERT’.

Your result will come out as a decimal number rounded toward the requested number of decimal places.

Additionally, you will also receive a conversion rate between your input and output units, as well as a convenient ‘COPY’ icon, that allows you to copy and paste the result elsewhere.

Converting Square Meters and Square Inches Manually

A key to establishing formulae for the manual conversion of these two units lies in their conversion rate.

The conversion rate is determined based on how many units of square meters are in 1 square inch, and vice versa.

Keep in mind that both of these values are rounded for convenience. If you require more accurate results, use our converter.

The 2 formulae we can derive from these equivalent values are as follows.

m^2 = in^2 * 0.00065

in^2 = m^2 * 1,550

The choice of the best formula is determined by the input and output of each problem you are trying to solve. For problems where the square inch is your input unit and the square meter is your output, the first formula would work best, as the output is also the subject of the formula.

Similarly, when trying to convert square meters into inches, we would use the second formula.

The following examples will demonstrate the usage of the formulae in practice.

EXAMPLE 1: A napkin has an area of 25 in². What is the area of this napkin in m²?

We have an input in square inches and an output in square meters. This calls for using the first formula, where we substitute 25 for square inches and count as follows.

m^2 = in^2 * 0.00065 \\= 25 *0.00065 \\=0.01625 ~m^2.

EXAMPLE 2: What is the area expressed in square inches of a sail that has an area of 2.33 m²?

This problem will utilize the second formula, as it has an input in square meters and an output in square inches. We substitute 2.33 for square meters and calculate as follows.

in^2 = m^2 * 1,550 \\= 2.33 * 1,550 \\= 3,611.5 ~in^2.

Unexpected Areas

There are things around us that sometimes seem larger or smaller than they really are. Below is a list of 5 items whose areas will probably shock you, expressed in either square meters or square inches. You can use our converters to convert them to other units.