Berghult made her professional debut on 18 December 2015, scoring a four round unanimous decision victory over Sara Marjanovic at the Rosvalla Arena in Nyköping, Sweden.
After compiling a record of 13–0 (3 KO), Berghult challenged IBOsuper-welterweight champion Hannah Rankin on 27 November 2019 at the Hotel Intercontinental in St. Julian's, Malta, with the vacant WBCinterim title also on the line. In a fight that saw Rankin suffer a knockdown from a left hook in the first-round, Berghult won via unanimous decision over ten rounds, with the judges scoring the bout 96–93, 95–94 and 94–93.[2][3]
She defeated Olivia Belkacem by unanimous decision to win the vacant WBC female super-welterweight title at SPIRA Kulturcentrum in Jönköping, Sweden, on 27 November 2021.[4]
In her next fight, Berghult lost her title and unbeaten record to WBO female super-welterweight champion Natasha Jonas via unanimous decision at the Echo Arena in Liverpool, England, on 3 September 2022.[5]
She challenged interim WBC female super-lightweight champion Chantelle Cameron at Resorts World Arena in Birmingham, England, on 2 November 2024, losing by unanimous decision with the three ringside judges scoring the fight 99-91, 100-90 and 98-92 for her opponent.[6][7]