Square Inch to Square Millimeter Converter

Convert Square Inch (in²) to Square Millimeter (mm²) and vice versa

Square Inch Value

in²

Square Millimeter Result

mm²

From Unit

To Unit

1 in² = 645.16000000 mm²

Square Inch (in²)	Square Millimeter (mm²)

Square Inch to Square Millimeter Square Inch to Square Centimeter Square Inch to Square Meter Square Inch to Square Kilometer Square Inch to Square Foot Square Inch to Square Yard Square Inch to Acre Square Inch to Hectare Square Inch to Square Mile