Question 1

What is 40.5 PSU in ppm?

Accepted Answer

40.5 PSU = 40,302.5 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 40,302.5 ppm in PSU?

Accepted Answer

40,302.5 ppm = 40.5 PSU.

PSU	ppm
34.5 PSU	34,331.8
36.5 PSU	36,322
38.5 PSU	38,312.3
40.5	40,302.5
42.5 PSU	42,292.8
44.5 PSU	44,283
46.5 PSU	46,273.3

40.5 PSU to ppm

Formula