Show HN: When can you retire? An early retirement calculator

I think this is an interesting tool, and it's very easy to use. I had a couple of thoughts:<p>1)What does the withdrawal rate measure? I took it to mean the % of your portfolio value needed to cover your annual expenses after retirement. Might be worth clarifying this somewhere.<p>2) Would be cool to see a similar chart for annual rate of return (if for nothing more than to drive home the importance of savings rate).<p>Either way, I think it does a great job of highlighting just how big an impact little changes can have.

Let me know if you want help with anything related to the finance and tax calculations. One thing I'd mention is that these calculators are fairly common, but the problem is that most people dont understand them. Putting them into context would probably much more useful. I'm a CPA, JD by trade so I have a good amount of experience in this.

I'd love to hear any ideas/reviews. I was inspired to create this calculator after reading this Mr Money Mustache article:<p><a href="http://www.mrmoneymustache.com/2012/01/13/the-shockingly-simple-math-behind-early-retirement/" rel="nofollow">http://www.mrmoneymustache.com/2012/01/13/the-shockingly-sim...</a><p>If you are interested in the math behind the calculator see my blog post about it here:<p><a href="http://blog.networthify.com/math/the-math-behind-the-calculator/" rel="nofollow">http://blog.networthify.com/math/the-math-behind-the-calcula...</a>