Square Inch [in2] to Centimeter [cm2] Converter

Definition: A square inch (in²) is a unit of area equal to the area of a square that is 1 inch on each side. It is commonly used in the United States and other countries that use the imperial system.

History/origin: The square inch is derived from the inch, which has ancient origins and was traditionally based on the width of a human thumb. Its exact definition has varied throughout history.

Current use: Square inches are used to measure smaller areas, such as the surface area of objects, screens, or printed materials. It's a common unit in manufacturing, design, and everyday measurements in the US.

Definition: A square centimeter (cm²) is a unit of area equal to a square that is 1 centimeter on each side. It is a decimal multiple of the square meter, the SI unit of area.

History/origin: The square centimeter is derived from the centimeter, which is part of the metric system established in France in the late 18th century. The metric system was designed to be a standardized and coherent system of measurement based on decimal multiples.

Current use: Square centimeters are commonly used to measure smaller areas, such as the surface area of small objects, diagrams, or cross-sections. They are frequently used in scientific and technical contexts where metric units are preferred.