Free Millionaire Calculator - Calculate Your Path to $1M
Find out what it takes to become a millionaire.
Formula & Methodology
The Millionaire Calculator projects two streams of growth: your initial lump sum compounds at the rate you enter, and your ongoing monthly contributions grow as an annuity on top of it. It then solves for how many years the combined balance needs to reach $1,000,000, so you can see whether your savings rate and return assumption get you there.
- FV = P(1 + r)^t + PMT × [((1 + r)^t − 1) / r]
- Years to $1M: solve FV = 1,000,000 for t
Worked Example
Using the Millionaire Calculator: apply the formula above to your input values. For instance, FV = P(1 + r)^t + PMT × [((1 + r)^t − 1) / r], then Years to $1M: solve FV = 1,000,000 for t. The tool performs each step instantly and shows the result.
Frequently Asked Questions
How long will it take to become a millionaire?
It projects how long your contributions and returns take to reach one million based on your starting balance and monthly investing.
What matters most for reaching a million?
Time, contribution amount and return rate all matter, but starting early gives compounding the most room to work.
Is a million enough to retire?
It depends on your expenses and location, but a million is a common milestone that funds a modest-to-comfortable retirement in many cases.