km² to mi²
Convert square kilometres to square miles instantly, with the formula and a table of common values.
How it works
Type a value in square kilometre — the result appears as you type.
The formula is shown, so you can check the arithmetic rather than trusting it.
Use the table for common values, or open the full Area Converter for other units.
Privacy
Everything happens locally. Your files are read by your own browser, processed on your device, and never uploaded — closing the tab is all it takes to erase them.
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