Question 1

What is 4,220 ppm in PSU?

Accepted Answer

4,220 ppm = 4.241 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 4.241 PSU in ppm?

Accepted Answer

4.241 PSU = 4,220.3 ppm.

ppm	PSU
4,205 ppm	4.226
4,210 ppm	4.231
4,215 ppm	4.236
4,220	4.241
4,225 ppm	4.246
4,230 ppm	4.251
4,235 ppm	4.256

4,220 ppm to PSU

Formula