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Length/Distance | Convert from attometer to block [South, West U.S.] |
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Common Length Conversions Metric Length Conversions Unit Definition (attometer) An Attometer (or attometre) is equal to one quintillionth of a meter, or sometimes denoted as 10e-18 meters. The origin of the prefix is atten, the word for 18 in Danish and Norwegian. Unit Definition (block [South, West U.S.]) The Block is an informal unit of distance popular in the U.S. A block is the average distance between street intersections in the rectangular street grids common in most American cities. The length of a block is about 1/10 mile (160 meters) in USA cities in the South and West.
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