Question 1

What is 4,615 ppm in PSU?

Accepted Answer

4,615 ppm = 4.638 PSU. Use the converter on this page to convert to other salinity / tds units instantly.

Question 2

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

Question 3

What is 4.638 PSU in ppm?

Accepted Answer

4.638 PSU = 4,615.4 ppm.

ppm	PSU
4,600 ppm	4.623
4,605 ppm	4.628
4,610 ppm	4.633
4,615	4.638
4,620 ppm	4.643
4,625 ppm	4.648
4,630 ppm	4.653

4,615 ppm to PSU

Formula