Question 1

What is 18.5 g/kg in PSU?

Accepted Answer

18.5 g/kg = 18.591 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 18.591 PSU in g/kg?

Accepted Answer

18.591 PSU = 18.5003 g/kg.

g/kg	PSU
15.5 g/kg	15.576
16.5 g/kg	16.581
17.5 g/kg	17.586
18.5	18.591
19.5 g/kg	19.596
20.5 g/kg	20.6
21.5 g/kg	21.605

18.5 g/kg to PSU

Formula