Question 1

What is 637 g/kg in PSU?

Accepted Answer

637 g/kg = 640.121 PSU. Use the converter on this page to convert to other salinity / tds units instantly.

Question 2

How do you convert g/kg to PSU?

Accepted Answer

Formula: 1 g/kg ≈ 1.0049 PSU · 1 mg/L ≈ 0.001 PSU · 1 ppm ≈ 0.001 PSU (dilute aqueous approximation). Multiply your g/kg value by the appropriate factor to get PSU, or use the interactive converter above.

Question 3

What is 640.121 PSU in g/kg?

Accepted Answer

640.121 PSU = 636.9997 g/kg.

g/kg	PSU
622 g/kg	625.048
627 g/kg	630.072
632 g/kg	635.097
637	640.121
642 g/kg	645.146
647 g/kg	650.17
652 g/kg	655.195

637 g/kg to PSU

Formula