<h3>What is parts per billion?</h3>
<p>The parts-per is a prefix combined with billion describes a quantity of some thing present relative to another. This unit is not part of SI unit system and it is commonly denoted as ppb or <span class="katex"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mi>p</mi><mi>p</mi><mi>b</mi></mrow><annotation encoding="application/x-tex">ppb</annotation></semantics></math></span> which is 1 quantity of something present in 10^9 of others.</p>
<p>Wikipedia page for explanation on <a href="https://en.wikipedia.org/wiki/Parts-per_notation">Parts-per notation</a></p>


<h2>Step by step guide to convert parts-per billion to parts-per million</h2>
<h3>Converting units</h3>
<p>Since both units has meters we just need to convert the <a href="https://en.wikipedia.org/wiki/Metric_prefix">metric prefix</a>. There is 1000 millions to a billion. Thus,</p>
<p class='katex-block'><span class="katex"><math xmlns="http://www.w3.org/1998/Math/MathML" display="block"><semantics><mrow><mn>1</mn><mtext> </mtext><mi>p</mi><mi>p</mi><mi>m</mi><mo>=</mo><mfrac><mn>1</mn><mfrac><mn>1</mn><mn>1000</mn></mfrac></mfrac><mtext> </mtext><mi>p</mi><mi>p</mi><mi>b</mi><mo>=</mo><mn>1000</mn><mi>p</mi><mi>p</mi><mi>b</mi></mrow><annotation encoding="application/x-tex">1\ ppm = \frac{1}{\frac{1}{1000}}\ ppb = 1000 ppb
</annotation></semantics></math></span></p>
<p>or</p>
<p class='katex-block'><span class="katex"><math xmlns="http://www.w3.org/1998/Math/MathML" display="block"><semantics><mrow><mn>1</mn><mtext> </mtext><mi>p</mi><mi>p</mi><mi>b</mi><mo>=</mo><mn>0.001</mn><mtext> </mtext><mi>p</mi><mi>p</mi><mi>m</mi></mrow><annotation encoding="application/x-tex">1\ ppb = 0.001\ ppm
</annotation></semantics></math></span></p>
<p>ppm - parts per million<br>
ppb - parts per billion</p>
<p>Wikipedia page for <a href="https://en.wikipedia.org/wiki/Parts-per_notation">parts-per notation</a></p>


<h2>How to convert parts-per billion to parts-per million</h2>
<p>1 parts-per billion (ppb) is equal to 1×10^-3 parts-per million (ppm). Conversely, 1 parts-per million (ppm) is equal to 1000 parts-per billion (ppb).</p>


Convert 1 ppb to other units	Result
Parts-per Billion to Parts-per Million (ppb to ppm)	0.001
Parts-per Billion to Parts-per Trillion (ppb to ppt)	1000.0000000000001
Parts-per Billion to Parts-per Quadrillion (ppb to ppq)	1000000

Parts-per Billion to Parts-per Million conversion

How to convert parts-per billion to parts-per million

Step by step guide to convert parts-per billion to parts-per million

Converting units

Complete Parts-per Billion conversion table

Parts Per conversions

Unit	Result