13.5 mg/L to ppm

13.5 mg/L = 13.5 ppm

mg/Lppm
10.5 mg/L10.5
11.5 mg/L11.5
12.5 mg/L12.5
13.513.5
14.5 mg/L14.5
15.5 mg/L15.5
16.5 mg/L16.5

13.5 mg/L = 13.5 ppm

Formula

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