Question 1

What is 18 ppm in mg/L?

Accepted Answer

18 ppm = 18 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 18 mg/L in ppm?

Accepted Answer

18 mg/L = 18 ppm.

ppm	mg/L
15 ppm	15
16 ppm	16
17 ppm	17
18	18
19 ppm	19
20 ppm	20
21 ppm	21

18 ppm to mg/L

Formula