What is the formula for PPB to PPM?

PPM = PPB ÷ 1,000. One million is 1,000 times one billion in ratio terms.

PPB is used for trace concentrations (e.g. contaminants in water, air quality).

Online PPB to PPM Converter

Convert parts per billion (PPB) to parts per million (PPM). Formula: PPM = PPB ÷ 1,000.

PPB (parts per billion)

What is the formula for PPB to PPM?: PPM = PPB ÷ 1,000. One million is 1,000 times one billion in ratio terms.
When is PPB used?: PPB is used for trace concentrations (e.g. contaminants in water, air quality).
Is 1000 ppb equal to 1 ppm?: Yes. 1000 ppb = 1 ppm.

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