Question 1

What is 503 g/kg in PSU?

Accepted Answer

503 g/kg = 505.465 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 505.465 PSU in g/kg?

Accepted Answer

505.465 PSU = 503.0003 g/kg.

g/kg	PSU
488 g/kg	490.391
493 g/kg	495.416
498 g/kg	500.44
503	505.465
508 g/kg	510.489
513 g/kg	515.514
518 g/kg	520.538

503 g/kg to PSU

Formula