Talk: Square kilometre

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I was checking the values listed on this page. The page currently says that 1 sq km equals 247.105383 acres.

The GNU units program gives 247.10439 acres

The National Oceanographic Data Center say 247.105381 acres [1]

The Google calculator also says 247.105381 acres [2]

I think 247.105381 is probably right. It is a pretty minor thing but it would be good to get it right. I will try to do some more checking, but welcome any comments from others. -- Popsracer 11:21, 29 Sep 2003 (UTC)

1 sq km = 1,000,000 sq m

0.3048² sq m = 1 sq ft

16.5² sq ft = 1 sq rod

160 sq rods = 1 acre

1 sq km = 247.105381467 acres

er... I think... Evil saltine 11:44, 29 Sep 2003 (UTC)

GNU Units assumes the U.S. survey acre instead of the international acre. The figure 247.105383 has an error in its last digit. -- Indefatigable 16:58, 30 Sep 2003 (UTC)