Question 1

What is 1,415 ppm in PSU?

Accepted Answer

1,415 ppm = 1.422 PSU. Use the converter on this page to convert to other salinity / tds units instantly.

Question 2

How do you convert ppm 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 ppm value by the appropriate factor to get PSU, or use the interactive converter above.

Question 3

What is 1.422 PSU in ppm?

Accepted Answer

1.422 PSU = 1,415.1 ppm.

ppm	PSU
1,400 ppm	1.407
1,405 ppm	1.412
1,410 ppm	1.417
1,415	1.422
1,420 ppm	1.427
1,425 ppm	1.432
1,430 ppm	1.437

1,415 ppm to PSU

Formula