Question 1

What is 402.5 PSU in mg/L?

Accepted Answer

402.5 PSU = 400,537.4 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 400,537.4 mg/L in PSU?

Accepted Answer

400,537.4 mg/L = 402.5 PSU.

PSU	mg/L
387.5 PSU	385,610.5
392.5 PSU	390,586.1
397.5 PSU	395,561.7
402.5	400,537.4
407.5 PSU	405,513
412.5 PSU	410,488.6
417.5 PSU	415,464.2

402.5 PSU to mg/L

Formula