this is not really a big deal. during the years i have developed some silly tools for various purposes, mainly musical ones though. currently bpmcalc is the only one available for download, but i hope to be adding some others as soon as i have had a chance of polishing them up a bit.
bpmcalc
a simple delay -> msec (and vice versa) converter. please refer to the supplied readme file for more info. you can download the latest version here.