1 Ymol (yottamole) is equal to 1,000,000,000,000,000,200,000,000,000,000,000,000 pmol (picomole). To convert from yottamole to picomole, multiply by 1,000,000,000,000,000,000,000,000,000,000,000,000 or divide by 0.000000000000000000000000000000000001.