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Dewey Decimal Classification to Library of Congress Classification


Mapping Dewey numbers to corresponding LC numbers

Note about this Guide

This guide exists as a self-help reference resource. We are unable to provide any cataloging assistance or answer cataloging questions.

What's in this Guide

What do you do if you have a Dewey Decimal Classification (DDC) number, but you are looking for books in the Library of Congress Classification (LCC) scheme?  See the following pages in this guide for help.


  • DDC to LCC - Mapping Dewey Decimal numbers to corresponding Library of Congress numbers
  • LCC to DDC - Mapping Library of Congress Classification numbers to corresponding Dewey numbers.

Search by Title, Author, Subject Heading, or Standard Number

Dewey Decimal Classification Handout and Library of Congress Classification Handout

Dewey Decimal list  - The basic categories of the Dewey Decimal Classification scheme.

Library of Congress list  - The basic categories of the Library of Congress Classification scheme.