13.5 ppm to mg/L

13.5 ppm = 13.5 mg/L

ppmmg/L
10.5 ppm10.5
11.5 ppm11.5
12.5 ppm12.5
13.513.5
14.5 ppm14.5
15.5 ppm15.5
16.5 ppm16.5

13.5 ppm = 13.5 mg/L

Formula

1 ppm = 1 mg/L (aqueous, density ≈ 1 kg/L) · 1 ppb = 0.001 mg/L · 1% = 10,000 ppm