Square Millimeter to Square Inch Conversion (mm² to in²)

How Many Square Inch in a Square Millimeter?

There are 0.0015500031 square inch in a square millimeter.
1 Square Millimeter is equal to 0.0015500031 Square Inch.
1 mm² = 0.0015500031 in²

Square Millimeter to Square Inch Conversions

Square Millimeter Definition

A square millimeter is a unit of area used for measuring very small areas. The unit is used as a part of SI measurement system and has a symbol of mm². One square millimeter is the area that equals to 1/100^th of a square centimeter (or 0.01 cm²) or equals to 1/1000000^th of a square meter (1.0 x 10^-6 m²).

Square Inch Definition

Used very often in the framework of the Imperial system, square inches are the units of area which represent a square-shaped area with one inch on each side. One square inch is equal to 6.4516 square centimeters and can be marked with the symbols of sq in or in². It is widely used primarily in architecture, engineering, construction, and other related areas requiring measuring of relatively small areas.

About mm² to in² Converter

This is a very easy to use square millimeter to square inch converter. First of all just type the square millimeter (mm²) value in the text field of the conversion form to start converting mm² to in², then select the decimals value and finally hit convert button if auto calculation didn't work. Square Inch value will be converted automatically as you type.

The decimals value is the number of digits to be calculated or rounded of the result of square millimeter to square inch conversion.

You can also check the square millimeter to square inch conversion chart below, or go back to square millimeter to square inch converter to top.