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Dozenal Society of America

Promoting base twelve and alternative base mathematics

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The Dozenal Society of America

The DSA is a voluntary, nonprofit education corporation, organized for the conduct of research and education of the public in the use of dozenal (also called duodecimal or base-twelve) in calculations, mathematics, weights and measures, and other branches of pure and applied science.

Decimal-Dozenal Conversion Rules

Title:	Decimal-Dozenal Conversion Rules
Author:	Prof. Gene Zirkel
Year:	11E1
Subject:	Rules for converting dozenal to decimal, integers and fractions, by hand.
http://www.dozenal.org/../sites_bck/default/files/DSA-ConversionRules_0.pdf

This document offers rules and examples for converting decimal numbers to dozenal and vice versa, useful for when conversion must be done by hand.

This website and the documents on it are licensed under a Creative Commons Attribution 3.0 Unported License.
Numeration on this site is in dozenal (also called duodecimal, or base twelve), using "X" for ten and "E" for eleven.
0 1 2 3 4 5 6 7 8 9 X E 10 11 12 13 14 15 16 17 18 19 1X 1E 20 21 22...
PDF documents may use a Dwiggins stylized "X" and "E" or the Pitman inverted "2" and "3".
The Humphrey point, or semicolon, is used for fractional parts; e.g., "0;6 = 0.5."