Question 1

What is 521 ppm in mg/L?

Accepted Answer

521 ppm = 521 mg/L. Use the converter on this page to convert to other concentration units instantly.

Question 2

How do you convert ppm to mg/L?

Accepted Answer

Formula: 1 ppm = 1 mg/L (aqueous, density ≈ 1 kg/L) · 1 ppb = 0.001 mg/L · 1% = 10,000 ppm. Multiply your ppm value by the appropriate factor to get mg/L, or use the interactive converter above.

Question 3

What is 521 mg/L in ppm?

Accepted Answer

521 mg/L = 521 ppm.

ppm	mg/L
506 ppm	506
511 ppm	511
516 ppm	516
521	521
526 ppm	526
531 ppm	531
536 ppm	536

521 ppm to mg/L

Formula