Question 1

What is 420 g/kg in PSU?

Accepted Answer

420 g/kg = 422.058 PSU. Use the converter on this page to convert to other salinity / tds units instantly.

Question 2

How do you convert g/kg to PSU?

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 g/kg value by the appropriate factor to get PSU, or use the interactive converter above.

Question 3

What is 422.058 PSU in g/kg?

Accepted Answer

422.058 PSU = 420 g/kg.

g/kg	PSU
405 g/kg	406.984
410 g/kg	412.009
415 g/kg	417.033
420	422.058
425 g/kg	427.082
430 g/kg	432.107
435 g/kg	437.131

420 g/kg to PSU

Formula