How many square millimeter in 1 square chain?
The answer is 404687260.
We assume you are converting between square millimetre and square chain [Gunter, survey].
You can view more details on each measurement unit:
square millimeter or
square chain
The SI derived unit for area is the square meter.
1 square meter is equal to 1000000 square millimeter, or 0.0024710439364956 square chain.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between square millimeters and square chains.
Type in your own numbers in the form to convert the units!

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