1 μmol/min (Micromole per Minute) is equal to 59,999,999,999,999,880,000,000,000,000 zkat (Zeptokatal). To convert from Micromole per Minute to Zeptokatal, multiply by 59,999,999,999,999,880,000,000,000,000 or divide by 0.0000000000000000000000000000166666666666667.