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Conversion Table for Parts Per Million (PPM) to Percent

Last Updated: May 01, 2014 12:33PM PDT

Sometimes, certain specifications such as those for frequency counters, oscilloscopes, or signal generators, specify accuracies in PPM, parts per million.  In some cases, it is useful to know this representation in percentage, especially when defining accuracies.

Below is a quick table look up to show conversions between the two:

PPM (Parts per million) Percent (%)
1 0.0001
10 0.001
100 0.01
1000 0.1
10000 1
seconds ago
a minute ago
minutes ago
an hour ago
hours ago
a day ago
days ago
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