Question 1

What is 389.5 ppm in ppb?

Accepted Answer

389.5 ppm = 389,500 ppb. Use the converter on this page to convert to other concentration units instantly.

Question 2

How do you convert ppm to ppb?

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 ppb, or use the interactive converter above.

Question 3

What is 389,500 ppb in ppm?

Accepted Answer

389,500 ppb = 389.5 ppm.

ppm	ppb
374.5 ppm	374,500
379.5 ppm	379,500
384.5 ppm	384,500
389.5	389,500
394.5 ppm	394,500
399.5 ppm	399,500
404.5 ppm	404,500

389.5 ppm to ppb

Formula