Question 1

What is 4,500 ppm in PSU?

Accepted Answer

4,500 ppm = 4.522 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 4.522 PSU in ppm?

Accepted Answer

4.522 PSU = 4,500 ppm.

ppm	PSU
4,485 ppm	4.507
4,490 ppm	4.512
4,495 ppm	4.517
4,500	4.522
4,505 ppm	4.527
4,510 ppm	4.532
4,515 ppm	4.537

4,500 ppm to PSU

Formula