Question 1

What is 105.5 PSU in ppm?

Accepted Answer

105.5 PSU = 104,985.6 ppm. Use the converter on this page to convert to other salinity / tds units instantly.

Question 2

How do you convert PSU to ppm?

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 PSU value by the appropriate factor to get ppm, or use the interactive converter above.

Question 3

What is 104,985.6 ppm in PSU?

Accepted Answer

104,985.6 ppm = 105.5 PSU.

PSU	ppm
90.5 PSU	90,058.7
95.5 PSU	95,034.3
100.5 PSU	100,010
105.5	104,985.6
110.5 PSU	109,961.2
115.5 PSU	114,936.8
120.5 PSU	119,912.4

105.5 PSU to ppm

Formula