Convert square millimeter [mm^2] to acre (US survey) [ac] Online | Free area Converter

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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.


Acre (US Survey) [ac]


The acre (US survey) is a unit of area used mainly in the United States for land measurement, based on the US survey foot. It is slightly different from the international acre due to the foot definition.



  • 1 US survey acre = 43,560 US survey square feet



  • 1 US survey acre ≈ 4,046.87261 square meters



  • Slightly larger than the international acre by about 0.0005%.



It is commonly used in land surveying, real estate, and agriculture.




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Convert square millimeter [mm^2] to Other Area Units

🔄 square millimeter [mm^2] to square meter [m^2]
🔄 square millimeter [mm^2] to square kilometer [km^2]
🔄 square millimeter [mm^2] to square centimeter [cm^2]
🔄 square millimeter [mm^2] to square micrometer [µm^2]
🔄 square millimeter [mm^2] to hectare [ha]
🔄 square millimeter [mm^2] to acre [ac]
🔄 square millimeter [mm^2] to square mile [mi^2]
🔄 square millimeter [mm^2] to square yard [yd^2]
🔄 square millimeter [mm^2] to square foot [ft^2]
🔄 square millimeter [mm^2] to square inch [in^2]
🔄 square millimeter [mm^2] to square hectometer [hm^2]
🔄 square millimeter [mm^2] to square dekameter [dam^2]
🔄 square millimeter [mm^2] to square decimeter [dm^2]
🔄 square millimeter [mm^2] to square nanometer [nm^2]
🔄 square millimeter [mm^2] to are [a]
🔄 square millimeter [mm^2] to barn [b]
🔄 square millimeter [mm^2] to square mile (US survey)
🔄 square millimeter [mm^2] to square foot (US survey)
🔄 square millimeter [mm^2] to circular inch
🔄 square millimeter [mm^2] to township
🔄 square millimeter [mm^2] to section
🔄 square millimeter [mm^2] to acre (US survey) [ac]
🔄 square millimeter [mm^2] to rood
🔄 square millimeter [mm^2] to square chain [ch^2]
🔄 square millimeter [mm^2] to square rod
🔄 square millimeter [mm^2] to square rod (US survey)
🔄 square millimeter [mm^2] to square perch
🔄 square millimeter [mm^2] to square pole
🔄 square millimeter [mm^2] to square mil [mil^2]
🔄 square millimeter [mm^2] to circular mil
🔄 square millimeter [mm^2] to homestead
🔄 square millimeter [mm^2] to sabin
🔄 square millimeter [mm^2] to arpent
🔄 square millimeter [mm^2] to cuerda
🔄 square millimeter [mm^2] to plaza
🔄 square millimeter [mm^2] to varas castellanas cuad
🔄 square millimeter [mm^2] to varas conuqueras cuad
🔄 square millimeter [mm^2] to Electron cross section
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