Convert Square Centimeter to Square Millimeter

One cm² equals 100 mm². This converter allows you to easily convert between Square Centimeter and Square Millimeter in real time.

Formula

cm² × 100 = mm²

Example: 1 cm² = 100 mm²

What is Square Centimeter?

The square centimeter is a unit of area equal to a square with sides of one centimeter, or one ten-thousandth of a square meter. It is used for measuring small surfaces such as postage stamps, photographs, and adhesive bandages. In medicine, the area of skin lesions and wound surfaces is documented in square centimeters. In engineering, cross-sectional areas of wires, bolts, and structural members are often expressed in cm².

What is Square Millimeter?

The square millimeter is a unit of area equal to a square with sides of one millimeter, or one-millionth of a square meter. It is most commonly used in electrical engineering to specify the cross-sectional area of wire conductors (for example, "a 2.5 mm² cable"). Precision-machined parts, O-ring cross-sections, and microelectronic chip features are also measured in square millimeters. In printing, the fine details of typefaces may be analyzed at this scale.