Millionaire Calculator
Yesterday, I wrote a post on what it takes to become a millionaire, where I gave a table showing given your monthly savings and an annual rate of return, when you will have at least $1M assets (houses, cars, etc. are not included). While the table is quite straightforward, it’s not flexible enough. For example, it doesn’t consider how much one already has and the monthly savings options are limited.
To make it more usable, I made a small calculator that takes into consideration the money you already have. Of course, with the calculator, you can save whatever amount you want every month, assume whatever annual return you want and see when you will become a millionaire 
Give it a try and let me know if you like it.
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Something seems off with the calculator. If I say that I start with $200,000 and contribute $0 a month and I expect a 0% return it says I will retire in 5 years. I like the math, just not sure I can trust it.
Nice catch, Lazy! The bugs are fixed