(self promotion)
I built an online tool for this type of math.

It calculates tempo/milliseconds/ticks/time in different ways for different needs.
All ya need is a browser.

http://tools.masteringmatters.com/

If you have ideas for other things to add I'll be happy to try.
I thought it was a pretty cool idea and would like to have an idea what kinds of math/calculator stuff other people that record audio would want. I've just added things to it as I found weird math calculations that I thought I may need later.

It's not pretty, but it's pretty handy and it works. If someone wants to 'pretty' it, that would be great.
I am a programmer, NOT a designer .. been told that many times in recent years (grin).







Make your sound your own!
.. I do not work here, but the benefits are still awesome