42.5 mg/L to ppm

42.5 mg/L = 42.5 ppm

mg/Lppm
36.5 mg/L36.5
38.5 mg/L38.5
40.5 mg/L40.5
42.542.5
44.5 mg/L44.5
46.5 mg/L46.5
48.5 mg/L48.5

42.5 mg/L = 42.5 ppm

Formula

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