[kh99]

You could try using the vb:number tag. It takes two arguments, a number and the number of decimal you want to display.

Or in the plugin you'd do something like:

PHP Code:

$bmi = vb_number_format((($userinfo['field7']/2.2) / ($userinfo['field8']/100)*2), 2); 


(if I converted your template code correctly - I'm not sure I got the parens in the right places).


and then in the template code:

PHP Code:

$templater->register('bmi', $bmi); 


and {vb:raw bmi} in the template.