Question 1

What is 1,865 ppm in PSU?

Accepted Answer

1,865 ppm = 1.874 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 1.874 PSU in ppm?

Accepted Answer

1.874 PSU = 1,864.9 ppm.

ppm	PSU
1,850 ppm	1.859
1,855 ppm	1.864
1,860 ppm	1.869
1,865	1.874
1,870 ppm	1.879
1,875 ppm	1.884
1,880 ppm	1.889

1,865 ppm to PSU

Formula