Convert square nanometer [nm^2] to square kilometer [km^2] Online | Free area Converter

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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.


Square Kilometer [km²]


A square kilometer (km²) is a unit of area equal to a square that is 1 kilometer on each side. It is commonly used to measure large areas such as cities, countries, or large land plots.

1 km² = 1,000,000 m².




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