Question 1

What is 4,080 ppm in PSU?

Accepted Answer

4,080 ppm = 4.1 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 4.1 PSU in ppm?

Accepted Answer

4.1 PSU = 4,080 ppm.

ppm	PSU
4,065 ppm	4.085
4,070 ppm	4.09
4,075 ppm	4.095
4,080	4.1
4,085 ppm	4.105
4,090 ppm	4.11
4,095 ppm	4.115

4,080 ppm to PSU

Formula