Question 1

What is 256.5 PSU in mg/L?

Accepted Answer

256.5 PSU = 255,249.3 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 255,249.3 mg/L in PSU?

Accepted Answer

255,249.3 mg/L = 256.5 PSU.

PSU	mg/L
241.5 PSU	240,322.4
246.5 PSU	245,298
251.5 PSU	250,273.7
256.5	255,249.3
261.5 PSU	260,224.9
266.5 PSU	265,200.5
271.5 PSU	270,176.1

256.5 PSU to mg/L

Formula