Question 1

What is 31.5 PSU in ppm?

Accepted Answer

31.5 PSU = 31,346.4 ppm. Use the converter on this page to convert to other salinity / tds units instantly.

Question 2

How do you convert PSU to ppm?

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 PSU value by the appropriate factor to get ppm, or use the interactive converter above.

Question 3

What is 31,346.4 ppm in PSU?

Accepted Answer

31,346.4 ppm = 31.5 PSU.

PSU	ppm
25.5 PSU	25,375.7
27.5 PSU	27,365.9
29.5 PSU	29,356.2
31.5	31,346.4
33.5 PSU	33,336.7
35.5 PSU	35,326.9
37.5 PSU	37,317.1

31.5 PSU to ppm

Formula