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Square Nanometer [nm²]

A square nanometer (nm²) is a unit of area equal to a square with sides 1 nanometer long (1 nm = 1 billionth of a meter, or 10⁻⁹ m).

It’s used to measure extremely tiny areas, like the surface of molecules or nanomaterials.

1 nm² = 1 × 10⁻¹⁸ m².