Excellent plugin.

I wasn’t actually looking for this plugin, was after a epoch time converter but looks as though I’ll have to write my own. However I have incorporated this plugin into my blog as it has useful functionality.

I did have to make 1 change as I could not get the formulae.opp file to load via url so made the following change t line 19 of oppso-unit-converter.php:

//$formulae_array = json_decode(file_get_contents(plugins_url("formulae.opp",__FILE__)),"true");
$formulae_array = json_decode(file_get_contents("formulae.opp",__FILE__),"true");

Also added volume and force conversions, including units from El Reg ‘official units of measurement’