Unit Name square chain [Gunter, survey] 1 unit = x square chain [Gunter, survey]
acre 0.1000004 9.999959
arpent [Canada] 0.118368 8.4482266
hectare 0.0404687 24.7104369
square 43.5601972 0.0229567
square foot 4356.1603875 0.0002296
square inch 674478.8333333 0.0000015
square kilometer 0.0004047 2471.0436923
square meter 404.6873 0.002471
square mile 0.0001563 6399.973783
square yard 484.0178208 0.002066