Question 1

What is 1,120 ppm in PSU?

Accepted Answer

1,120 ppm = 1.125 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 1.125 PSU in ppm?

Accepted Answer

1.125 PSU = 1,119.5 ppm.

ppm	PSU
1,105 ppm	1.11
1,110 ppm	1.115
1,115 ppm	1.12
1,120	1.125
1,125 ppm	1.131
1,130 ppm	1.136
1,135 ppm	1.141

1,120 ppm to PSU

Formula