Küzmics was born in Dolnji Slaveči and died in Kančevci.
His parents were János and Erzsébet Küsmics [sic].
Miklós Küzmics wrote the first bilingual textbook for the Hungarian Slovenes, entitled ABC knizsica narodni soul haszek (Elementary School Primer), which he translated from German into Hungarian and Slovene.
This booklet, which contained the first Slovene-Hungarian dictionary, appeared in Buda in 1790.
Although they had the same surname, Miklós Küzmics was not related to István Küzmics, the most important Protestant writer and educator of the Hungarian Slovenes in Prekmurje.