How to calculate PPM (Parts Per Million)? - Short Tutorials
PPM is derived from the fact that the density of water is taken as 1kg/L = 1,000,000 mg/L, and 1mg/L is 1mg/1,000,000mg which is one part in one million (1 PPM). That is 1000 ml is one liter, so that 1 ppm = 1 mg per liter = mg/Liter. Given below is the representation of PPM in percentage. PPM (Parts Per Million) to % (Parts Per Hundred)