Qalculate! sisixhobo sokubala sedesktop eneenjongo ezininzi. Kulula ukuyisebenzisa kodwa ibonelela ngamandla kunye nokuguquguquka okuqhelekileyo okugcinelwe iipakethe zezibalo ezintsonkothileyo, kunye nezixhobo eziluncedo kwiimfuno zemihla ngemihla (ezifana noguqulo lwemali kunye nokubalwa kwepesenti). Iimpawu zibandakanya ilayibrari enkulu yemisebenzi enokwenziwa ngokwezifiso, ukubala kweeyunithi kunye nokuguqulwa, ukuguquguquka ngokomzimba, izibalo ezingokomfanekiso (kubandakanywa i-integrals kunye ne-equations), ukuchaneka okungaqondakaliyo, ukusabalalisa ukungaqiniseki, i-arithmetic yekhefu, ukucwangcisa, kunye ne-interface-friendly interface (GTK + kunye ne-CLI).