Born in Sofia. In 1995, he graduated from the Prof. Pancho Vladigerov National Academy of Music with Prof. Asen Selimski.
During his studies he was awarded the First prize at the Hristo Brambarov Competition, November 1995. He took part in the Singer of the World Competition in Cardiff, June 1995. The same year he made his debut on the stage of the Sofia Opera and Ballet as Don Basilio, The "Il Barbiere di Siviglia" (Rossini). Since February 1996, he has been a soloist of the Sofia Opera.
Svetozar Rangelov has many roles, including Filippo II, "Don Carlo" (Verdi), Mephistopheles, "Faust" (Gounod), Konchak, "Prince Igor" (Borodin) and others.