Question 1

What is 1,900 ppm in PSU?

Accepted Answer

1,900 ppm = 1.909 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 1.909 PSU in ppm?

Accepted Answer

1.909 PSU = 1,899.7 ppm.

ppm	PSU
1,885 ppm	1.894
1,890 ppm	1.899
1,895 ppm	1.904
1,900	1.909
1,905 ppm	1.914
1,910 ppm	1.919
1,915 ppm	1.924

1,900 ppm to PSU

Formula