Question 1

What is 4,590 ppm in PSU?

Accepted Answer

4,590 ppm = 4.612 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 4.612 PSU in ppm?

Accepted Answer

4.612 PSU = 4,589.5 ppm.

ppm	PSU
4,575 ppm	4.597
4,580 ppm	4.602
4,585 ppm	4.607
4,590	4.612
4,595 ppm	4.618
4,600 ppm	4.623
4,605 ppm	4.628

4,590 ppm to PSU

Formula