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To help compare different orders of magnitude this page lists lengths between 1 pm and 10 pm (10-12 m and 10-11 m). See also lengths of other orders of magnitude. Lengths shorter than 1 pm 5 pm -- shorter X-ray frequencies (approx) Lengths longer than 10 pm External links Conversion Calculator for Units of LENGTH (http://www.ex.ac.uk/cimt/dictunit/ccleng.htm)