Question 1

What is 4,300 ppm in PSU?

Accepted Answer

4,300 ppm = 4.321 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 4.321 PSU in ppm?

Accepted Answer

4.321 PSU = 4,299.9 ppm.

ppm	PSU
4,285 ppm	4.306
4,290 ppm	4.311
4,295 ppm	4.316
4,300	4.321
4,305 ppm	4.326
4,310 ppm	4.331
4,315 ppm	4.336

4,300 ppm to PSU

Formula