How This Investment Calculator Works
This calculator helps you estimate how much money you could accumulate in a retirement account over time by making regular monthly contributions. Whether you are investing in a 403b, 457b, 401K, or IRA, you can use this investment calculator.
To use it:
- Enter how much you plan to invest each month
- Choose how many years you’ll keep investing
- Enter an average annual return (a typical long-term stock market return is 7%–10%)
Retirement Savings Calculator
It assumes your money is invested consistently, compounding monthly, and that contributions are made at the beginning of each month — which slightly increases the total growth over time.
Keep in mind: this is a simplified estimate and doesn’t account for taxes, fees, inflation, or market fluctuations. It’s a great tool for setting goals and understanding how consistent investing can build wealth over the long term!