56.5 PSU to g/kg

56.5 PSU = 56.2245 g/kg

PSUg/kg
41.5 PSU41.2976
46.5 PSU46.2733
51.5 PSU51.2489
56.556.2245
61.5 PSU61.2001
66.5 PSU66.1757
71.5 PSU71.1514

56.5 PSU = 56.2245 g/kg

Formula

1 g/kg ≈ 1.0049 PSU · 1 mg/L ≈ 0.001 PSU · 1 ppm ≈ 0.001 PSU (dilute aqueous approximation)