Square miles to square millimeters (mi² to mm²) converter

You can enter a value in either the square miles (mi²) or square millimeters (mm²) input fields. For an understanding of the conversion process, we include algebraic formulas.

See conversions to common Area units and easily switch Area units in the two tabbed section below. Use the search bar above to find additional conversions.

Tip: Click the "Swap" button to switch from converting square miles to square millimeters to square millimeters to square miles.

square miles (mi²)

 

square millimeters (mm²)

 
Swap
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1 mi² = 2589988110336 mm² 1 mm² = 0 mi²

Algebraic Steps / Dimensional Analysis Formula
mi² * 4014489600 in²
1 mi²
* 6.4516 cm²
1 in²
* 100 mm²
1 cm²
= mm²

Direct Conversion Formula
mi² * 2589988110336 mm²
1 mi²
= mm²

If you would like to switch between Area units, select from the tables below

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