Question 1

What is 418.5 PSU in mg/L?

Accepted Answer

418.5 PSU = 416,459.3 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 416,459.3 mg/L in PSU?

Accepted Answer

416,459.3 mg/L = 418.5 PSU.

PSU	mg/L
403.5 PSU	401,532.5
408.5 PSU	406,508.1
413.5 PSU	411,483.7
418.5	416,459.3
423.5 PSU	421,435
428.5 PSU	426,410.6
433.5 PSU	431,386.2

418.5 PSU to mg/L

Formula