Zhuyin and Pinyin Conversion Table.

Zhuyin, popularly known as bopomofo, is a system designed to represent the Mandarin
Chinese sounds. It is still used in Taiwan as a teaching
aid for children and as the phonetic symbols in dictionaries.
The pinyin system, in the other hand, was designed in China
to be both a phonetic and a romanization system. Since
both systems were designed on the same Mandarin dialect,
the conversion from one system to the other is straightforward.

The zhuyin system, not being encumbered by the Roman alphabet is more efficient
way to represent Mandarin sounds. Although the symbols it
uses were derived from Chinese characters, they are
not Chinese characters themselves. The ordering of the zhuyin
alphabet helps demonstrate
the limited number of sounds that exist (excluding the tones,
of course). In Zhuyin, a Mandarin syllable can be composed
of up to three parts: an initial, a medial, and a final, where
one or more parts may be omitted. The set of valid combinations is shown in
our Pinyin Initials and Finals Combination Table.

(Yellow Bridge:http://www.yellowbridge.com/chinese/zhuyin.php)