Part Per Million Converter
This calculator converter is dedicated to simple parts per million to percent conversions and percent to parts per million i.e. ppm to % and % to ppm
Place the value you want to convert in the box and then chose the conversion tab applicable to your needs
You may find this a handy tool to iindicate the accuracy of an item. A component may be said to have an accuracy of 100 PPM so in this case its value is accurate to within 100 parts in a million or 0.01%.
Note-this is a parts-per-million calculation (ppm) 106, not parts-per-billion (ppb) 109, not parts-per-trillion (ppt) 1012
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echo “<table width=’100%’ border=’0′ cellspacing=’0′ cellpadding=’0′ height=’71’> <tr><td> <form action=’ppm_converter.html’ method=’POST’><table width=’70%’ border=’0′ cellspacing=’0’cellpadding=’2′>“;if (@$_POST[‘convert0’] != “”){$PPM_value = $_POST[‘PPM’];$Percent_value = $PPM_value / 10000;$PPM_value = sprintf(‘%0.1f’, $PPM_value);$Percent_value = sprintf(‘%0.5f’, $Percent_value);}elseif (@$_POST[‘convert1’] != “”){$Percent_value = $_POST[‘Percent’];$PPM_value = $Percent_value * 10000;$PPM_value = sprintf(‘%0.1f’, $PPM_value);$Percent_value = sprintf(‘%0.5f’, $Percent_value);}else{$PPM_value = 10000;$Percent_value = 1;$PPM_value = sprintf(‘%0.1f’, $PPM_value);$Percent_value = sprintf(‘%0.5f’, $Percent_value);} echo “<tr><td width=’70%’><b>Parts Per Million:</b></td><td width=’40%’><input type=’text’ name=’PPM’ value=’$PPM_value’></td><td width=’10%’><b>PPM</b></td></tr><tr><td width=’70%’><b>Percent:</b></td><td width=’40%’><input type=’text’ name=’Percent’ value=’$Percent_value’></td><td width=’10%’><b>%</b></td></tr></table><p><input type=’submit’ name=’convert0′ value=’PPM to Percent’> <input type=’submit’ name=’convert1′ value=’Percent to PPM’></p></form> </td></tr> </table>
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