Convert acre [ac] to square millimeter [mm^2] Online | Free area Converter
Acre [ac]
An acre (ac) is a unit of area commonly used in the United States and other countries for measuring land. One acre equals 43,560 square feet or about 4,047 square meters.
1 acre ≈ 0.4047 hectares or 0.004047 square kilometers.
Acres are often used to describe the size of farms, plots, and real estate.
Square Millimeter [mm²]
A square millimeter (mm²) is a unit of area equal to a square with sides 1 millimeter long. It is used to measure very small surfaces, such as parts of mechanical components or electronic circuits.
1 mm² = 0.000001 m².