Question 1

What is 685 g/kg in PSU?

Accepted Answer

685 g/kg = 688.356 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 688.356 PSU in g/kg?

Accepted Answer

688.356 PSU = 684.9995 g/kg.

g/kg	PSU
670 g/kg	673.283
675 g/kg	678.307
680 g/kg	683.332
685	688.356
690 g/kg	693.381
695 g/kg	698.405
700 g/kg	703.43

685 g/kg to PSU

Formula