Convert Square Foot to Square Millimeter

One sq ft equals 92,903.04 mm². This converter allows you to easily convert between Square Foot and Square Millimeter in real time.

Formula

sq ft × 92,903.04 = mm²

Example: 1 sq ft = 92,903.04 mm²

What is Square Foot?

The square foot is a unit of area in the imperial and US customary systems, equal to a square with sides of one foot, or exactly 0.09290304 square meters. In the United States, it is the standard unit for expressing indoor floor area in real estate listings, with homes described as having, for example, "2,000 square feet." Flooring materials, carpet, and tiles are priced and sold per square foot. Commercial lease agreements also specify office and retail space in square feet.

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.