How to convert Single yarn strength SYS CN strength to CLSP or RKMĀ 

SYS stands for single yarn strength.    CN/0.9807 = SYS and then SYS X 1.6934 X actual count / 1000 x 156.2 = CLSP  If you want to convert this CLSP into RKM please divide it by 156.2  CN is yarn strength in centinewton.  Hope this short calculation for Converting CN to CLSP/RKM was helpful for you.