How to Convert Parts per Million to Grams per Liter
- 1). Enter the numerical value of the solution concentration, in units of ppm, into the calculator. For example, if you were working with a sodium chloride in water solution labeled as being 300 ppm (equivalent to 300 mg/L), you would enter 300.
- 2). Divide the value you just entered by 1000. This is the conversion factor between milligrams and grams, since there are 1000 milligrams in a gram.For example, you would calculate 300 divided by 1000 to obtain 0.3.
- 3). Report the concentration of the solution as the value you just calculated, in units of g/L. For example, you would report that the concentration of the solution is 0.3 g sodium chloride/L.
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