5.5 ppm to mg/L

5.5 ppm = 5.5 mg/L

ppmmg/L
2.5 ppm2.5
3.5 ppm3.5
4.5 ppm4.5
5.55.5
6.5 ppm6.5
7.5 ppm7.5
8.5 ppm8.5

5.5 ppm = 5.5 mg/L

Formula

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