Question 1

What is 4,545 ppm in PSU?

Accepted Answer

4,545 ppm = 4.567 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 4.567 PSU in ppm?

Accepted Answer

4.567 PSU = 4,544.7 ppm.

ppm	PSU
4,530 ppm	4.552
4,535 ppm	4.557
4,540 ppm	4.562
4,545	4.567
4,550 ppm	4.572
4,555 ppm	4.577
4,560 ppm	4.582

4,545 ppm to PSU

Formula