Birgit Kronström studied singing at the Conservatory and then performing arts at the Svenska Teatern, Helsinki's Swedish-language theater.

In 1938, again under the direction of Orkon, Kronström appeared in Markan tähden (Movie star of the markka).

After the Second World War, films that Kronström appeared in included, Poretta, Onnellinen ministeri (Happy Minister) and Avioliittoyhtiö (Marriage Company), the last two with actor Tauno Palo.

One was a comedy Amor Hoi - where she once again starred with Tauno Palo - and Morsiusseppele (The Bridal Wreath), a no-frills tale of a rural romance.

Kronström's second husband from 1944-1953 was opera singer, actor and vocal teacher Ture Ara.