Question 1

What is 640.5 PSU in mg/L?

Accepted Answer

640.5 PSU = 637,376.9 mg/L. Use the converter on this page to convert to other salinity / tds units instantly.

Question 2

How do you convert PSU to mg/L?

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 mg/L, or use the interactive converter above.

Question 3

What is 637,376.9 mg/L in PSU?

Accepted Answer

637,376.9 mg/L = 640.5 PSU.

PSU	mg/L
625.5 PSU	622,450
630.5 PSU	627,425.6
635.5 PSU	632,401.2
640.5	637,376.9
645.5 PSU	642,352.5
650.5 PSU	647,328.1
655.5 PSU	652,303.7

640.5 PSU to mg/L

Formula