653 g/kg to PSU

653 g/kg = 656.2 PSU

g/kgPSU
638 g/kg641.126
643 g/kg646.151
648 g/kg651.175
653656.2
658 g/kg661.224
663 g/kg666.249
668 g/kg671.273

653 g/kg = 656.2 PSU

Formula

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