How To Pronounce I'm

In British English, I'm is pronounced /aɪm/. The narrow phonetic transcription is [a͠ɪm]. In American English, it is pronounced /aɪm/.

I'm has one syllable. British and American speakers say it the same way.

Slashes / / show the phonemic transcription, the sounds that change meaning. Square brackets [ ] show the phonetic transcription, with the finer detail of how the sounds are actually made.