She is 168 cm (5 ft 6 in) tall and took charge of her first international match in September 2004, Malta versus Bosnia and Herzegovina.

She eventually reached the top division of male football in Hungary, the Nemzeti Bajnokság I, officiating a match between BFC Siófok and Honvéd in 2011.

[3][4][5] At the 2015 FIFA Women's World Cup, Kulcsár officiated the group-round match between New Zealand and China.

[6][7] Kulcsár was appointed to referee the 2016 UEFA Women's Champions League final at Stadio Città del Tricolore.

[8] On 3 December 2018, Kulcsár was appointed to be a referee for the 2019 FIFA Women's World Cup in France.