Question 1

What is 1,085 ppm in PSU?

Accepted Answer

1,085 ppm = 1.09 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 1.09 PSU in ppm?

Accepted Answer

1.09 PSU = 1,084.7 ppm.

ppm	PSU
1,070 ppm	1.075
1,075 ppm	1.08
1,080 ppm	1.085
1,085	1.09
1,090 ppm	1.095
1,095 ppm	1.1
1,100 ppm	1.105

1,085 ppm to PSU

Formula